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1D Plots 2D Images Original Inputs Timing Output Warnings1D Plots
2D Images
Table of Original Inputs
All inputs used for the calculation
| Value | |
|---|---|
| Target Mag | 7.403 |
| Saturation Level (electons) | 59192.0 |
| Instrument | nircam |
| Mode | lw_tsgrism |
| Aperture | lw |
| Disperser | grismr |
| Subarray | sub82s2_4-spectra |
| Readmode | dhs5 |
| Filter | f322w2 |
| Primary/Secondary | rp^2/r*^2 |
Timing Info
All the timing info needed for your observation. Overhead calculation assumes 30 minute target acquisition time.
APT Inputs
| Value | |
|---|---|
| Instrument | NIRCam |
| Template | NIRCam Grism Time Series |
| SW Channel Mode | GRISM |
| Subarray | SUB82S2_4-SPECTRA |
| No. of Output Channels | 2 |
| Short Pupil+Filter | GDHS0+F150W2 |
| Long Pupil+Filter | GRISMR+F322W2 |
| Readout Pattern | DHS5 |
| Groups per Integration | 3 |
| Exposures/Dith | 2 |
| Integrations/Exp | 10347 |
Calculation Details
| Value | |
|---|---|
| Transit Duration (hr) | 14.690000 |
| Number of Transits | 1 |
| Transit + Baseline, No Overhead (hr) | 30.000022 |
| Observing Efficiency (%) | 83.333333 |
| Frame Time (sec) | 0.434930 |
| Integrations In Transit | 10133 |
| Integrations Out of Transit | 10560 |
| Estimated DHS Data Excess (GB) | 7.8 (Verify using APT) |
| Assumed No-TA Scheduling + Slew Overhead (sec) | 2794.217465 |
| Elapsed Time per Integration incl. Reset (sec) | 5.219160 |
| Science Time per Integration excl. Reset (sec) | 4.349300 |
Warnings
Pay attention to these warnings! If you do not see 'All good' written in each box, reconsider your run.
| Value | |
|---|---|
| Group Number Too Low? | All good |
| Group Number Too High? | All good |
| Non linear? | All good |
| Saturated? | All good |
| % full well high? | All good (57% < 80%) |
| Num Groups Reset? | All good |
| Minimum Integrations? | All good |
| DHS Readout Optimization | Selected DHS5 after RAPID, BRIGHT1, DHS3, DHS4 exceeded the 15 GB recommendation. Estimate assumes no target acquisition and a standard 2,100-second initial slew. |
| DHS Data Excess? | Estimated data excess is 7.8 GB, above the 5 GB lower threshold. This is acceptable for DHS, but verify the setup in APT. |
References
When publishing results based on PandExo, please cite:
Batalha, N.E., Mandell, A., Pontoppidan,K., et al., 2017, PASP, 129, 976
