WFPC2 RESTRICTIONS

1. Limit the shutter open time of WFPC2 to about one hour

throughout BEA (hence no BEA science with WFPC2)

2. No WFPC2 pure parallels throughout SMOV

J.10.4.16 General Verification Requirements

J.10.4.16.1 The HST optics shall be protected from contaminants being polymerized by the solar UV light reflected by the earth in the early stage of outgassing following SM3. The following con-tamination management plan shall be carried out to provide the protection described below.

1. Avoid pointing the +V1 axis within 15 degrees of bright earth limb from the time HST is released by the Orbiter through release +3 days.

2. Avoid pointing the +V1 axis within two degrees of the bright earth Limb from release +3 days through release +12 days.

3. From release +12 days through release +42 days the cumulative exposure of the focal plane to the earth (+V1 axis within two degrees of the bright-earth surface) is not to exceed the total bright earth exposure (approximately six days) experienced by HST during the first six weeks following the Second Servicing Mission.

J.10.4.16.2 A short-wavelength (approximately Lyman alpha) stellar observation shall be performed.

J.10.4.16.3 Parallel operation of NICMOS, STIS, and WFPC2, and ACS shall be demonstrated, with an allowance, if necessary, of several weeks of response time between the first parallel test and subsequent operations requiring parallel capabilities

ASSUMPTIONS

1. WFPC2. The following two assumptions apply to WFPC II at the point of HST release:

a. WFPC II is in PROTECT-SAFE mode.

b. The WFPC II shutter is closed with the F785LP filter in place.