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 |
| |
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 | ||
MIRI TSO | Target acquisition needs to be implemented in APT | Medium | For LRS slitless: complete. (Note: small snafu in APT 26.1beta, will be addressed with PR 90948 hopefully for the 26.1 release version) For Imaging: work approved but not yet scheduled for implementation (as of 07/2018); expected to be available for cycle 1. For MRS: complete. | |
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 | ||
MIRI TSO | Enable MRS TSO mode
| Medium | See PR 90305 and 90194. In progress, however needs some discussion on how to advertise to users given uncertainties on performance. Simultaneous imaging will be disabled due to data volume concerns. | |
MIRI TSO | Telescope roll may be an issue with MRS
| Medium | ||
NIRCam TSO | Enable SW DHS spectroscopic mode | High | ||
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 | ||
NIRISS SOSS | Enable mode to use F277W filter to remove spectral overlap as a calibration | Low | ||
NIRISS SOSS | Enable 100% duty cycle mode | High | ||
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: ??? | |
JDox | Listed NIRSpec gain values do no apply to BOTS mode
| Medium | Maria Pena-Guerrero |
|
JDox | Add decision tree describing how to plan TSOs | Medium |
| |
JDox | Discuss file segments in TSO strategy page, link to segment page with full details (once it's created) | Medium | Sarah Kendrew |
|
ETC | List brightest pixel fluence in output | Low | ||
ETC | Provide NGROUPS required to reach saturation. Also, define "saturation" for each instrument | Low | ||
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 Lafreniere | David submitted a ticket (INC0058021) Resolved |
QuickLook | Develop JWST TSO QuickLook monitor for all relevant instrument modes What to include in TSO monitor:
| Medium | Reach out to Francesca and Matthew B about availability of parameters |