Hubble Space Telescope NICMOS Proposing Example - 6
! | PED OUTPUT PRODUCT |
! Generated by PREPROCESSOR, version 7.0
! Date: Fri Dec 13 13:27:38 EST 1996
Title: NICMOS Coronographic Observation
Scientific_Category: STELLAR EJECTA
PI_Name: Joan Smith
PI_Institution: University 1
CoI_Name: John Brown
CoI_Institution: University 2
Use of the Coronograph.
In this proposal, circumstellar material is being observed in NIC2 and
the F160W filter. The proposers are interested in material located at a
distance > 0".4 from the central object, so the observations is suited
for use of the coronograph (0".4 is the effective radius of the coronograph).
The first exposure in the series is the ACQUISITION of the target under the
coronographic spot. The second exposure is the actual observation of the
For the target acquisition under the coronographic spot, the NIC2-ACQ
aperture is selected. The central star is assumed to be very bright, and
a short exposure time 0f 0.7 seconds (TPG_time + 0.598 seconds = 0.1 + 0.598
seconds) is selected to ensure that the acquisition exposure does
The observation of the circumstellar material is performed through the NIC2-CORON
aperture. The MULTIACCUM readout mode with the sequence STEP256 and
NSAMP=12 (corresponding to 512 seconds of integration) is used to
obtain enough dynamical range and signal on the target. Three iterations
of this exposure are requested to reach fainter detection limits.
Alternate_Names: Nice Star 1
Position: RA=13H 50M 49.40S +/- 0.02S,DEC=42D 20' 58.0" +/- 0.7"
Comments: The value of the flux is in units of Jy, at 1.6 microns. The star is very bright
Visit_Comments: First exposure: target acquisition under the cornograph;
second exposure: observation of the circumstellar material.
Time_Per_Exposure: 0.7 S
ONBOARD ACQ FOR 2
Data_Distribution ! Defaults indicated; change if desired
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