!  File:  1512C.PROP
!  Database:  PEPDB
!  Date:  16-FEB-1994:21:23:23

coverpage:

  title_1:         FOC AIRGLOW AND PARTICLE BACKGROUND
    proposal_for:  SV/FOC
    pi_title:      DR.
    pi_fname:      F.
    pi_lname:      PARESCE
    pi_inst:       SPACE TELESCOPE SCIENCE INSTITUTE
    pi_country:    USA
    pi_phone:      301-338-4823
! end of coverpage

abstract:

    line_1:        The FOC background due to high energy particles in the earth's upper atmosphere
    line_3:        will be measured. The main objectives are to assess the contributions of this
    line_4:        source of noise to the FOC's deep survey capabilities and to its performance
    line_5:        in daylight conditions and in the vicinity of the SAA.
    line_7:        Measurements of the SAA induced noise will determine the
    line_8:        operational constraints to be adopted for the FOC in the SAA.

!
! end of abstract

general_form_proposers:

  lname:           PARESCE
    fname:         F.
    title:         DR.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    country:       USA

!
! end of general_form_proposers block

general_form_text:

  question:        3
    section:       1
    line_1:        In order to compute a S/N ratio for an observation, the instrument
    line_2:        background as a function of position in the orbit and target location need to
    line_3:        be known as accurately as possible. Furthermore, if count rates in the SAA
    line_4:        exceed certain limits, the instrument may have to be turned off. The
    line_5:        boundaries of this region need to be carefully explored.
    line_9:        1. HIGH ENERGY PARTICLE BACKGROUND. With shutters closed, LEDs off, 512 x 512
    line_10:       format, F/48 and F/96 cameras, about 9-10 consecutive 10 minute exposures
    line_11:       per orbit for 10 consecutive orbits through the SAA. Total time = 2 x 9.5
    line_12:       x 10 x 10 = 1600 minutes = 26.7 hours.
    line_13:       Note that all these exposures should be obtained in parallel.
    line_14:       If possible, parallel HSP dark count measurements should also be made.

!

  question:        3
    section:       2
    line_1:        For the high-energy particle background the ST pointing is not important.

!

  question:        5
    section:       1
    line_1:        To be scheduled as early as possible in the mission after FOC turn on.
    line_4:        NOTES TO SCHEDULER: In this activity, an optimum OTA focus is not required.
    line_5:        Both parts can be executed without requiring test FOC-i1 (1505-FOC Stability
    line_6:        Test) or FOC-03 (1507-FOC Optical Focus) to have been performed.
    line_7:        In these observations the FOC will be left exposing with the
    line_8:        shutter closed, the attitude of the SC is not a concern.
    line_9:        The particle background observations are to be executed in parallel with any
    line_10:       other instrument.
    line_11:       The HSP should be run in parallel, in response to the STScI request for
    line_12:       supporting data for the HSP Radiation Monitoring OLT. If those parallel
    line_13:       measures present scheduling problems, or are not possible at the time of
    line_14:       execution, the HSP measurements should be dropped.

!
!end of general form text

general_form_address:

  lname:           PARESCE
    fname:         F.
    title:         DR.
    inst:          SPACE TELESCOPE SCIENCE INSTITUTE
    addr_1:        3700 SAN MARTIN DRIVE
    city:          BALTIMORE
    state:         MD
    zip:           21218
    country:       USA
    phone:         301-338-4823
    telex:         684-9101-STSCI

!
! end of general_form_address records

! No fixed target records found

! No solar system records found

! No generic target records found

exposure_logsheet:

    linenum:       1.000
    targname:      DARK
    config:        FOC/96
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    CLEAR
    num_exp:       15
    time_per_exp:  600S
    priority:      1
    req_1:         PAR;
    req_2:         CYCLE 0 /1-2;
    comment_1:     SAA PEAK SHOULD BE SCHEDULED TO OCCUR
    comment_2:     AT EXPOSURE #7 +/- 1.

!

    linenum:       2.000
    targname:      DARK
    config:        FOC/48
    opmode:        IMAGE
    aperture:      512X512
    sp_element:    CLEAR
    num_exp:       15
    time_per_exp:  600S
    priority:      1
    req_1:         PAR;
    comment_1:     SAA PEAK SHOULD BE SCHEDULED TO OCCUR
    comment_2:     AT EXPOSURE #7 +/- 1.

!
! end of exposure logsheet

! No scan data records found