Please contact Kevin Stevenson or Sarah Kendrew to add issues to this page.
Instrument / Group | Description of the Issue (include JIRA/PR links if possible) and Eventual Solution | Priority | Lead(s) | Status |
---|---|---|---|---|
DMS / Calibration | Optimal background subtraction needs to be decided upon and implemented in CALTSO3 | Medium |
| |
DMS / Calibration | Continuous Integration / Unit testing
| High |
| |
DMS / Calibration | ISIM clock is not precise enough for TSO, need to use FPE clock for relative time and S/C clock for reference point | High |
IN PROGRESS | |
DMS / Calibration | Write technical memo (TM) describing spacecraft clock correction, engineering mnemonic SCTA_OFFSET, and how to access engineering data to see where within the exposure the correction was applied | Low | ON HOLD until analysis is completed | |
DMS / Calibration | The transiting exoplanet community is requesting access to "jitter files". These files record the stellar positions of the guide stars and have been used successfully to decorrelate against instrument systematics in HST data.
| Medium | Kevin Stevenson | OPEN |
MIRI TSO | Target acquisition needs to be implemented in APT | Medium | For LRS slitless DONE For Imaging: ON HOLD (not for cycle 1) For MRS: DONE | |
MIRI TSO | Enable TSO mode for MIRI imaging | High | Work approved but not yet scheduled | |
MIRI TSO | Tests show long persistence ramp in TSO data, no easy means to pre-flash detector
| Low | IN PROGRESS | |
MIRI TSO | Enable MRS TSO mode
| Medium | TSO special requirement enabled for MIRI MRS as per: APT-90305 - Getting issue details... STATUS Simultaneous imaging is disabled when TSO SR is selected. DONE Note: Add notes to JDocs re. data volume concerns. | |
MIRI TSO | Telescope roll may be an issue with MRS
| Medium | no action required? | |
NIRCam TSO | Enable SW DHS spectroscopic mode | High | IN PROGRESS JSOCINT-264 - Getting issue details... STATUS | |
NIRCam TSO | Enable narrow-band filter option for target acquisition | High | ||
NIRCam TSO | Enable TA on saturated targets | Medium | ||
NIRSpec BOTS | How do we ensure the target falls in the 1.6” aperture before TA?
| Low | ||
NIRSpec BOTS | Enable WATA on saturated targets | High | ||
NIRSpec BOTS | Enable WATA with NGROUPS=1 or 2 | Medium | ||
NIRSpec BOTS | Enable 100% duty cycle mode | High | ON HOLD (not for cycle 1) | |
NIRISS SOSS | Enable mode to use F277W filter to remove spectral overlap as a calibration | Low | JSOCINT-123 - Getting issue details... STATUS ON HOLD | |
NIRISS SOSS | Enable 100% duty cycle mode | High | ON HOLD (not for cycle 1) | |
JDox | Need bias and 1% saturation levels to make target fluence recommendation to observers | Medium | NIRCam: ~35k ADU (~69k electrons) NIRISS: ~35k ADU (~56k electrons) NIRSpec: ~35k ADU (~???k electrons) MIRI: ??? IN PROGRESS | |
JDox | Listed NIRSpec gain values do no apply to BOTS mode
| Medium |
| |
JDox | Add decision tree describing how to plan TSOs | Medium | See New TSO roadmap page in JDocs DONE | |
JDox | Discuss file segments in TSO strategy page, link to segment page with full details (once it's created) | Medium |
| |
ETC | List brightest pixel fluence in output | Low | ||
ETC | Provide NGROUPS required to reach saturation. Also, define "saturation" for each instrument | Low | ||
ETC | Turn off flatfield uncertainty for TSOs to generate realistic SNR values | Medium | Kevin Stevenson | JETC-322 - Getting issue details... STATUS DONE |
APT | APT only asks for transit ephemeris in HJD
| Low | ||
APT | APT may be slow to run Visit Planner for short period planets
| Low | Everett submitted a ticket (INC0051035) with the JWST Help Desk | |
APT | For very long exposures, the APT visit planner fails to satisfy the phase constraint.
PR 90539 Resolution: We are *not* planning to change JWST's VSS/JCL to change the way it deals with Phase constrained observations. We *are* planning to have APT alert the user with a warning when the Phase constraint is lost due to the overlapping windows problem. We believe a handful of observations a year will face this issue and we can refer the user to documentation of workarounds in the APT warning. Proposed workarounds:
Agreed upon solution: When APT calculates that the observation is long enough that VSS will not be able to honor the specified Phase requirement (** see note below) then APT will take the following actions:
| Low | David submitted a ticket (INC0058021) DONE Resolved | |
QuickLook | Develop JWST TSO QuickLook monitor for all relevant instrument modes https://innerspace.stsci.edu/display/JWQLPROJ/TSO+monitor What to include in TSO monitor:
| Medium | Reached out to Francesca and timeline and work justification/priority IN PROGRESS |