! Proposal 6498, submission 2
! PI: Hervey Stockman
! Received Thu Feb  8 14:39:30 EST 1996
! From: stockman@stsci.edu

Proposal_Information              
Title:  Accretion Streams in Magnetic Variables: FOS Eclipse Studies of 
        4 ROSAT/HEAO 1 Sources
Proposal_Category:  GO
Scientific_Category:  BINARIES AND STAR FORMATION
Cycle:    6

Investigators
     PI_name:         Hervey Stockman
     PI_Institution:  Space Telescope Science Institute

CoI_Name:   Gary Schmidt
CoI_Institution:   University of Arizona
Contact: N


Abstract: 

Pre-COSTAR HST FOS RAPID-Mode observations of DP Leo, ST LMi, and UZ
For have shown that the UV region is ideal for the study of the
accretion streams, white dwarfs, and heated photospheres surrounding
the X-ray/cyclotron accretion shocks.  These studies will be extended
to 4 recently discovered Magnetic CVs using higher time resolution for
the brighter sources and more extended observations of the more
detached, longer period systems.  The eclipse data reveal the
position, size, and ionization conditions of the threading region and
the pre-shock accretion stream.  They also yield the sizes and
relative luminosities of the white dwarf and far- UV hot spot. These
data are particularly germane to the issue of inhomogeneous (blobby)
accretion and the resulting effects on the hard X-ray/soft
X-ray/cyclotron balance and shock geometries in these complex, naked
CVs.

Questions 
Observing_Description:
Each observation will be comprised of the following: 
o Guide Star acquisition : 7.5 min. 
o Binary Acquisition : 9 min (or use offset from previous ACQ)
o Rapid Mode through the remainder of the first orbit : 35 min.

We have considerable experience with the FOS RAPID mode and intend to
use Rapid Mode with and integrations of about 0.8 s to maximize the
temporal and wavelength resolution with only slight impacts on
throughput (94%--> 80% ).  For UZ For and DP Leo, we have found two
eclipse observations are crucial to reduce the effects of flicker
noise and verify persistent eclipse structures.  Thus, our orbit
estimates are derived from the need for two eclipse observations per
object.  Typical count rates in the weakest channels, the far -UV
channel and the C IV + He II channel, can be scaled by our UZ For
observations and the relative brightnesses of the targets.  UZ For
(Mv=16.8) would give approximately 7.5 cnts/s post-COSTAR in the B3
aperture in each of these faint channels and 100 cnts/s and 500 cnts/s
in the near-UV and white light channels respectively.  All of the
targets in Table 1 are as bright as UZ For. RXJ0515+0105 and
RXJ2107.9-- 0518 are 4 times brighter. If the white dwarf and far-UV
spot luminosities scale accordingly (they are comparable in the far-UV
channel), the transition from white dwarf to white dwarf+hot spot will
be from 15 cnt/s to 30 cnts/s during the egress of the spot in a two
eclipse average.  This is a 2Sigma rise for a 1 s egress.  More
complete modeling will set a 2 s upper limit on the time of egress. As
in UZ For, the near-UV channel can also be used to limit the size of
spot if the accretion stream is sufficiently eclipsed to eliminate
flicker noise.  Indeed, due to the dropoff in FOS efficiency, the
near-UV channel can provide higher signal-to- noise but requires more
exact modeling of the white dwarf eclipse for the subtraction.

Real_Time_Justification:
The major special requirement is phasing (PHASE) the RAPID mode 
observations with the eclipse ephemeris of the objects. To aid the 
planning operations: we can allow reduction of the 35m exposures to 
avoid filling the tape recorders, we use previous offsets to avoid 
acquiring during eclipse(!) and to have large buffers for the phasing 
of the next observations.  Cycle1 experience indicates that the 
required  data rates can be sustained for up to 35minutes per target. 
All the targets are accessible from major northern hemisphere 
observatories.  It is our intent to obtain coeval spectropolarimetry of 
these targets using the CCD instrument described by Schmidt et al 
(1992), using the Steward 2.3 m on Kitt Peak or other facilities. 
RXJ0929.1-2404 has been confirmed as a mag CV this winter and we 
are obtaining an improved emphemeris.

Calibration_Justification: none

Additional_Comments: 

All of the rapid mode observations assume 1MHz storage to tape and
substep = 2. If observations must be shorten, we indicate in the
comments how the center the exposures.  Generally speaking, there will
be sufficient buffer times to allow precise phasing in a reasonable
number of possible orbits (about 5%, particularly for the USE OFFSET
obs and if the observations are shortened to avoid overloading the
tape recorder).

Fixed_Targets

Target_Number: 1
Target_Name: RXJ0515+0105
Alternate_Names:
Description: STAR, POLAR, INTERACTING BINARY
Position: RA=05H 15M 41.38S +/- 0.1S, DEC=+01D 4' 40.66" +/- 0.2",
PLATE-ID=04YO
Equinox: J2000
Epoch: 1984
Flux: V=15.7+/-0.5, B-V= 0.7+/-0.2! Include at least V and B-V
Comments: PERIOD =7.89HR

Target_Number: 2
Target_Name: RXJ1940-1025
Alternate_Names:
Description: STAR, POLAR, INTERACTING BINARY
Position:RA=19H 40M 11.47S +/- 0.1S, 
DEC=-10D 25' 25.1" +/- 1.0",PLATE-ID=02QN
Equinox:J2000
Epoch:1985
Flux: V=16.5+/-0.5, B-V=0.4+/-0.2! Include at least V and B-V
Comments: PERIOD=201.9M

 
Target_Number: 3
Target_Name: 1H1752+081
Alternate_Names:
Description: STAR, POLAR, INTERACTING BINARY
Position: RA=18H 00M 35.60S +/- 0.1S,DEC=+08D 10' 12.51" +/- 1",
PLATE-ID=02V7
Equinox:J2000
Epoch:1982
Flux: V=16.4 +/-0.5, B-V=0.4 +/-0.2
Comments: PERIOD=112.97M

Target_Number: 4
Target_Name: RXJ0929-1-2404
Alternate_Names:
Description: STAR, POLAR, INTERACTING BINARY
Position:  RA=9H 29M 7.1S +/- 0.1S,DEC=-24D 05' 05.4" +/- 1.0",
PLATE-ID=04A0
Equinox: J2000
Epoch: 1982
Flux: V=16.7, B-V= 0.4
Comments: PERIOD=203.4M

!*********Visits 1-8 for 0515***********
!*****Visit 1******

Visit_Number: 1
Visit_Requirements:  SCHED 60%
 GROUP 1-4 WITHIN 21D
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 1 of 4 to cover first eclipse

     Exposure_Number: 1       
         Target_Name: RXJ0515+0105
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095 

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 20S ! Best compromise for ingress
Special_Requirements: ONBOARD ACQ FOR 5
SAVE OFFSET T0515A
NO SPLIT

     Exposure_Number: 3       
         Target_Name: RXJ0515+0105
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095 ;

!Exposure_Number: 4
!Target_Name: RXJ0515+0105
!Config: FOS/BL
!Opmode: RAPID
!Aperture: 1.0-PAIR-A
!Sp_Element: G160L
!Time_Per_Exposure: 1000S ! first tr
!Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
!Special_Requirements: RT ANALYSIS
!PHASE 0.897 TO 0.917
!NO SPLIT

Exposure_Number: 5
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 929.6S ! second tr
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements:PHASE 0.907 TO 0.927
NO SPLIT
Comments: The gap should center at 0.94

!*****Visit 2******
Visit_Number: 2
Visit_Requirements:  SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 2 of 4 to cover first eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! one tape at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS  
PHASE 0.920 TO 0.940
NO SPLIT
USE OFFSET T0515A

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! one tape at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
USE OFFSET T0515A
Comments: The gap should center at 0.97
!*****Visit 3******

Visit_Number: 3
Visit_Requirements:  
SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 3 of 4 to cover first eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Time_Per_Exposure: 1000S ! 1 TR at a time
Special_Requirements: RT ANALYSIS 
PHASE 0.980 TO 0.00 
NO SPLIT
USE OFFSET T0515A

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Time_Per_Exposure: 900S ! 1 TR at a time
Special_Requirements: 
NO SPLIT
USE OFFSET T0515A
Comments: The gap should center at 0.03

!******visit4*****

Visit_Number: 4
Visit_Requirements:  SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 4 of 4 to cover first eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.01 TO 0.03
NO SPLIT
USE OFFSET T0515A ! Avoids eclipse during acq.

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
USE OFFSET T0515A ! Avoids eclipse during acq.
Comments: The gap should center at 1.06

!***** visits 5-8 cover a second eclipse *******

!*****Visit 5******
Visit_Number: 5
Visit_Requirements:  AFTER 1 BY 21D 
SCHED 60%
GROUP 5-8 WITHIN 40D
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 1 of 4 to cover second eclipse.  GROUP WITHIN
changed from 21 to 40 days with PI approval.

     Exposure_Number: 1       
         Target_Name: RXJ0515+0105
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095 

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 20S ! Best compromise for ingress
Special_Requirements:ONBOARD ACQ FOR 5
SAVE OFFSET T0515B
NO SPLIT

     Exposure_Number: 3       
         Target_Name: RXJ0515+0105
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095;


!Exposure_Number: 4
!Target_Name: RXJ0515+0105
!Config: FOS/BL
!Opmode: RAPID 
!Aperture: 1.0-PAIR-A
!Sp_Element: G160L
!Time_Per_Exposure: 1000S ! 1 TR at a time
!Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
!Special_Requirements: RT ANALYSIS
!PHASE 0.897 TO 0.917
!NO SPLIT

Exposure_Number: 5
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 929.6S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: PHASE 0.907 TO 0.927
NO SPLIT
Comments: The gap should center at 0.94

!*****Visit 6******

Visit_Number: 6
Visit_Requirements:  
SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 2 of 4 to cover second eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS 
PHASE 0.920 to 0.940
NO SPLIT
USE OFFSET T0515B

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements:  
NO SPLIT
USE OFFSET T0515B
Comments: The gap should center at 0.97

!*****Visit 7******

Visit_Number: 7
Visit_Requirements:  SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 3 of 4 to cover second eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 980S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.980 TO 0.999
NO SPLIT
USE OFFSET T0515B ! Avoids eclipse during acq.

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
USE OFFSET T0515B ! Avoids eclipse during acq.
Comments: The gap should center at 0.03

!*****Visit 8******

Visit_Number: 8
Visit_Requirements:  SCHED 60%
PERIOD 0.3326120D AND ZERO-PHASE JD2449087.8173
Visit_Comments: This visit 4 of 4 to cover second eclipse

Exposure_Number: 1
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.01 TO 0.03
NO SPLIT
USE OFFSET T0515B ! Avoids eclipse during acq.

Exposure_Number: 2
Target_Name: RXJ0515+0105
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
USE OFFSET T0515B ! Avoids eclipse during acq.
Comments: The gap should center at 1.06

!********************Visits9-12, RXJ1940-1025***************
!*********visits 9-10, first eclipse coverage**********
!****visit 9*****

Visit_Number: 9
Visit_Requirements:SCHED 60%
PERIOD 0.1402350D AND ZERO-PHASE JD2449217.9234
Visit_Comments: This 1 of 2 visits to cover first eclipse

     Exposure_Number: 1       
         Target_Name: RXJ1940-1025
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095 

Exposure_Number: 2
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 28S ! Best compromise
Special_Requirements:ONBOARD ACQ FOR 5
SAVE OFFSET T1940A
NO SPLIT

     Exposure_Number: 3       
         Target_Name: RXJ1940-1025
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095;

!Exposure_Number: 4
!Target_Name: RXJ1940-1025
!Config: FOS/BL
!Opmode: RAPID 
!Aperture: 1.0-PAIR-A
!Sp_Element: G160L
!Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
!Time_Per_Exposure: 1000S ! 1 TR at a time
!Special_Requirements: RT ANALYSIS
!PHASE 0.884 TO 0.904
!NO SPLIT

Exposure_Number: 5
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Time_Per_Exposure: 924.8S ! 1 TR at a time
Special_Requirements:PHASE 0.90 TO 0.92
NO SPLIT
Comments: The gap should center at 0.965

!****visit 10*****

Visit_Number: 0A
Visit_Requirements:SCHED 60%
PERIOD 0.1402350D AND ZERO-PHASE JD2449217.9234
Visit_Comments: This 2 of 2 visits to cover first eclipse

Exposure_Number: 1
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
USE OFFSET T1940A ! uses previous offset to avoid eclipse
PHASE 0.91 TO 0.93
NO SPLIT

Exposure_Number: 2
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
USE OFFSET T1940A ! uses previous offset to avoid eclipse
NO SPLIT

Comments: Gap should center at 0.002

!*********visits 11-12, second eclipse coverage**********
!****visit 11*****

Visit_Number: 0B
Visit_Requirements: AFTER 9 BY 21D ! allows for faint periods
SCHED 60%
PERIOD 0.1402350D AND ZERO-PHASE JD2449217.9234
Visit_Comments: This 1 of 2 visits to cover second eclipse

     Exposure_Number: 1       
         Target_Name: RXJ1940-1025
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095

Exposure_Number: 2
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 28S ! Best compromise
Special_Requirements: ONBOARD ACQ FOR 5
SAVE OFFSET T1940B ! save offset for next visit,
NO SPLIT

     Exposure_Number: 3       
         Target_Name: RXJ1940-1025
              Config: S/C              
              Opmode: POINTING           
            Aperture: V1            
          Sp_Element:           
          Wavelength:           
 Optional_Parameters:
Number_of_Iterations: 1
   Time_Per_Exposure: 3M       
Special_Requirements: FORMAT HN; POS TARG 328.858,-359.095;
                       

!Exposure_Number: 4
!Target_Name: RXJ1940-1025
!Config: FOS/BL
!Opmode: RAPID 
!Aperture: 1.0-PAIR-A
!Sp_Element: G160L
!Time_Per_Exposure: 1000S ! 1 TR at a time
!Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
!Special_Requirements: RT ANALYSIS 
!PHASE 0.884 TO 0.904
!NO SPLIT

Exposure_Number: 5
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 924.8S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: PHASE 0.90 TO 0.92
NO SPLIT
Comments: Gap should center at 0.965

!****visit 12*****

Visit_Number: 0C
Visit_Requirements:SCHED 60%
PERIOD 0.1402350D AND ZERO-PHASE JD2449217.9234
Visit_Comments: This 2 of 2 visits to cover second eclipse

Exposure_Number: 1
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 1000S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.91 TO 0.93
NO SPLIT
USE OFFSET T1940B ! uses previous offset to avoid eclipse

Exposure_Number: 2
Target_Name: RXJ1940-1025
Config: FOS/BL
Opmode: RAPID
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure: 900S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
USE OFFSET T1940B ! uses previous offset to avoid eclipse
Comments: Gap should center at 0.02

!****************VISITS 13-14, 1H1752+081*************

Visit_Number: 0D
Visit_Requirements:SCHED 60%
PERIOD 0.078450008D AND ZERO-PHASE JD2448071.02014
Visit_Comments: This visit covers the first eclipse

Exposure_Number: 1
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 17.4S ! Best compromise
Special_Requirements:ONBOARD ACQ FOR 2-3
NO SPLIT

Exposure_Number: 2
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L 
Time_Per_Exposure:849.6S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.90 TO 0.92
NO SPLIT

Exposure_Number: 3
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L 
Time_Per_Exposure:400S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
Comments: Gap should be centered on 1.03

!****visit 14****

Visit_Number: 0E
Visit_Requirements:  
SCHED 60%
PERIOD 0.078450008D AND ZERO-PHASE JD2448071.02014
AFTER 0D BY 21D
Visit_Comments: This visit covers the second eclipse

Exposure_Number: 1
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 17.4S ! Best compromise
Special_Requirements:ONBOARD ACQ FOR 2-3
NO SPLIT

Exposure_Number: 2
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L 
Time_Per_Exposure:849.6S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS
PHASE 0.90 to 0.92
NO SPLIT

Exposure_Number: 3
Target_Name: 1H1752+081
Config: FOS/BL
Opmode: RAPID  
Aperture: 1.0-PAIR-A
Sp_Element: G160L 
Time_Per_Exposure:400S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: 
NO SPLIT
Comments: Gap should be centered on 1.03

!****************VISITS 15-16, RXJ0929.1-2404*************

Visit_Number: 0F
Visit_Requirements:
SCHED 60%
PERIOD 0.14124372502D AND ZERO-PHASE JD2449007.588256
On_Hold_Comments:
Visit_Comments: This visit covers the first eclipse.  Ephem updated 3/6/96.

Exposure_Number: 1
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 26.6S ! Best compromise
Special_Requirements:ONBOARD ACQ FOR 2-3
NO SPLIT

Exposure_Number: 2
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure:849.6S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS 
PHASE 0.915 to 0.935
NO SPLIT

Exposure_Number: 3
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure:400S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements:  
NO SPLIT
Comments: Gap should be centered on 0.00

!****visit 16****

Visit_Number: 0G
Visit_Requirements:  AFTER 0F BY 21D
SCHED 60% 
PERIOD 0.14124372502D AND ZERO-PHASE JD2449007.588256
On_Hold_Comments:
Visit_Comments: This visit covers the second eclipse.  Ephem updated 3/6/96.
Exposure_Number: 1
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: ACQ/BINARY
Aperture: 4.3
Sp_Element: MIRROR
Time_Per_Exposure: 26.6S ! Best compromise
Special_Requirements:ONBOARD ACQ FOR 2-3
NO SPLIT

Exposure_Number: 2
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure:849.6S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements: RT ANALYSIS 
PHASE 0.959 TO 0.979
NO SPLIT

Exposure_Number: 3
Target_Name: RXJ0929-1-2404
Config: FOS/BL
Opmode: RAPID 
Aperture: 1.0-PAIR-A
Sp_Element: G160L
Time_Per_Exposure:400S ! 1 TR at a time
Optional_Parameters:STEP-PATT=SINGLE,READ-TIME=0.8, SUB-STEP=2
Special_Requirements:  
NO SPLIT
Comments: Gap should be centered on 0.00

!**************Data Distribution************
Data_Distribution
Medium:        8MM 
Blocking_Factor:  10 
Ship_To: PI_Address