Exposure
- ID
- GRAVI.2022-03-20T08:19:49.425_2
- Header ID
- GRAVI.2022-03-20T08:19:49.425
- Date updated
- 2022-03-20 08:35:46 UTC+0000
- Release date
- 2023-03-20 08:35:46 UTC+0000
- UTC Start
- 2022-03-20 08:19:49.425
- UTC End
- 2022-03-20 08:25:09.425
- MJD Start
- 59658.34709983
- MJD End
- 59658.3508035337
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004452
- Ambient temperature (°C)
- 14.07
- Seeing (arcsec)
- 1.225
Observation
- ID
- 49978
- Category
- science
- Program ID
- 108.2248.001
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ STRAUBMEIER/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ OTT/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ HABIBI/ PERRIN/ HORROBIN/ PAUMARD/ LACOUR/ HEIßEL/ VINCENT
Target
- ID
- 37345
- Name
- IRS16C
- RA
- 266.4171125
- DEC
- -29.0076475
Instrument
- Interferometer
- VLTI
- Instrument
- GRAVITY_FT
- Instrument mode
- LOW
- Instrument sub-mode
- DUAL
- Stations
- U1 U2 U3 U4
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 56.3260 | 56.3440 | 8.7000 | 9.5000 |
| U1-U3 | 101.3380 | 101.4200 | 14.2000 | 15.1000 |
| U1-U4 | 121.4830 | 122.1410 | 40.1590 | 41.2160 |
| U2-U3 | 45.5970 | 45.6740 | 21.1000 | 22.0000 |
| U2-U4 | 79.0930 | 79.8890 | 61.9710 | 62.9680 |
| U3-U4 | 53.7000 | 54.3830 | 95.7580 | 96.3780 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 108.2248.001 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59658.34709983 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416769 |
| DEC | -29.00713 |
| HIERARCH ESO INS SPEC RES | LOW |
| HIERARCH ESO INS POLA MODE | SPLIT |
| 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 | 342.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 56.326 |
| HIERARCH ESO ISS PBL12 END | 56.344 |
| HIERARCH ESO ISS PBLA12 START | 8.7 |
| HIERARCH ESO ISS PBLA12 END | 9.5 |
| HIERARCH ESO ISS PBL13 START | 101.338 |
| HIERARCH ESO ISS PBL13 END | 101.42 |
| HIERARCH ESO ISS PBLA13 START | 14.2 |
| HIERARCH ESO ISS PBLA13 END | 15.1 |
| HIERARCH ESO ISS PBL14 START | 121.483 |
| HIERARCH ESO ISS PBL14 END | 122.141 |
| HIERARCH ESO ISS PBLA14 START | 40.159 |
| HIERARCH ESO ISS PBLA14 END | 41.216 |
| HIERARCH ESO ISS PBL23 START | 45.597 |
| HIERARCH ESO ISS PBL23 END | 45.674 |
| HIERARCH ESO ISS PBLA23 START | 21.1 |
| HIERARCH ESO ISS PBLA23 END | 22.0 |
| HIERARCH ESO ISS PBL24 START | 79.093 |
| HIERARCH ESO ISS PBL24 END | 79.889 |
| HIERARCH ESO ISS PBLA24 START | 61.971 |
| HIERARCH ESO ISS PBLA24 END | 62.968 |
| HIERARCH ESO ISS PBL34 START | 53.7 |
| HIERARCH ESO ISS PBL34 END | 54.383 |
| HIERARCH ESO ISS PBLA34 START | 95.758 |
| HIERARCH ESO ISS PBLA34 END | 96.378 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003942 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004962 |
| HIERARCH ESO ISS AMBI TEMP | 14.07 |
| HIERARCH ESO ISS AMBI FWHM START | 1.44 |
| HIERARCH ESO ISS AMBI FWHM END | 1.01 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5310 |