Exposure
- ID
- GRAVI.2022-04-22T00:36:33.265_1
- Header ID
- GRAVI.2022-04-22T00:36:33.265
- Date updated
- 2022-04-22 00:50:34 UTC+0000
- Release date
- 2022-04-22 00:36:33 UTC+0000
- UTC Start
- 2022-04-22 00:36:33.265
- UTC End
- 2022-04-22 00:42:33.265
- MJD Start
- 59691.02538501
- MJD End
- 59691.0295516767
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002424
- Ambient temperature (°C)
- 9.39
- Seeing (arcsec)
- 1.275
Observation
- ID
- 50505
- Category
- calibrator
- Program ID
- 109.23KQ.001
- Program Title
- FEASIBILITY STUDY OF RESOLVING THE NUCLEAR REGIONS OF EHT TARGETS
- Program Type
- Normal
- PI / COI
- RAMAKRISHNAN/ TRISTRAM
Target
- ID
- 37745
- Name
- HD_110171
- RA
- 190.088033
- DEC
- -12.43462
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 52.3170 | 52.3710 | 4.9000 | 5.9000 |
| U1-U3 | 92.1460 | 92.3790 | 10.7000 | 11.8000 |
| U1-U4 | 102.5820 | 103.9900 | 40.7070 | 41.9390 |
| U2-U3 | 40.4330 | 40.6320 | 18.1000 | 19.3000 |
| U2-U4 | 67.4640 | 68.9070 | 67.6660 | 68.4980 |
| U3-U4 | 51.4360 | 52.3420 | 104.4020 | 104.4880 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.23KQ.001 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,SINGLE |
| MJD-OBS | 59691.02538501 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,DIRECT |
| HIERARCH ESO OBS TARG NAME | HD 110171 |
| HIERARCH ESO INS SOBJ NAME | HD_110171 |
| RA | 190.088033 |
| DEC | -12.43462 |
| HIERARCH ESO INS SPEC RES | MEDIUM |
| HIERARCH ESO INS POLA MODE | COMBINED |
| HIERARCH ESO ISS CONF NTEL | 4 |
| HIERARCH ESO ISS CONF STATION1 | U1 |
| HIERARCH ESO ISS CONF STATION2 | U2 |
| HIERARCH ESO ISS CONF STATION3 | U3 |
| HIERARCH ESO ISS CONF STATION4 | U4 |
| EXPTIME | 376.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 52.317 |
| HIERARCH ESO ISS PBL12 END | 52.371 |
| HIERARCH ESO ISS PBLA12 START | 4.9 |
| HIERARCH ESO ISS PBLA12 END | 5.9 |
| HIERARCH ESO ISS PBL13 START | 92.146 |
| HIERARCH ESO ISS PBL13 END | 92.379 |
| HIERARCH ESO ISS PBLA13 START | 10.7 |
| HIERARCH ESO ISS PBLA13 END | 11.8 |
| HIERARCH ESO ISS PBL14 START | 102.582 |
| HIERARCH ESO ISS PBL14 END | 103.99 |
| HIERARCH ESO ISS PBLA14 START | 40.707 |
| HIERARCH ESO ISS PBLA14 END | 41.939 |
| HIERARCH ESO ISS PBL23 START | 40.433 |
| HIERARCH ESO ISS PBL23 END | 40.632 |
| HIERARCH ESO ISS PBLA23 START | 18.1 |
| HIERARCH ESO ISS PBLA23 END | 19.3 |
| HIERARCH ESO ISS PBL24 START | 67.464 |
| HIERARCH ESO ISS PBL24 END | 68.907 |
| HIERARCH ESO ISS PBLA24 START | 67.666 |
| HIERARCH ESO ISS PBLA24 END | 68.498 |
| HIERARCH ESO ISS PBL34 START | 51.436 |
| HIERARCH ESO ISS PBL34 END | 52.342 |
| HIERARCH ESO ISS PBLA34 START | 104.402 |
| HIERARCH ESO ISS PBLA34 END | 104.488 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002846 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002002 |
| HIERARCH ESO ISS AMBI TEMP | 9.39 |
| HIERARCH ESO ISS AMBI FWHM START | 1.08 |
| HIERARCH ESO ISS AMBI FWHM END | 1.47 |