Exposure
- ID
- GRAVI.2023-08-31T02:02:26.649_2
- Header ID
- GRAVI.2023-08-31T02:02:26.649
- Date updated
- 2023-08-31 02:20:18 UTC+0000
- Release date
- 2024-08-31 02:20:17 UTC+0000
- UTC Start
- 2023-08-31 02:02:26.649
- UTC End
- 2023-08-31 02:08:26.649
- MJD Start
- 60187.08503066
- MJD End
- 60187.08919732666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002667
- Ambient temperature (°C)
- 14.31
- Seeing (arcsec)
- 1.12
Observation
- ID
- 56795
- Category
- science
- Program ID
- 111.24H1.005
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - PROBING EVENT HORIZON SCALE PHYSICS WITH STARS AND FLARES
- Program Type
- GTO
- PI / COI
- EISENHAUER/ GILLESSEN/ GENZEL/ OTT/ STRAUBMEIER/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
- ID
- 41849
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007645
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 | 53.4820 | 53.2000 | 37.2000 | 37.5000 |
| U1-U3 | 95.4290 | 94.7790 | 43.4000 | 43.8000 |
| U1-U4 | 114.6960 | 113.2000 | 73.4590 | 74.0260 |
| U2-U3 | 42.6720 | 42.2990 | 51.3000 | 51.7000 |
| U2-U4 | 78.2830 | 77.2000 | 97.3140 | 98.2090 |
| U3-U4 | 57.5060 | 57.0340 | 129.5640 | 130.7480 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60187.08503066 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41685 |
| DEC | -29.00732 |
| 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 | 389.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 53.482 |
| HIERARCH ESO ISS PBL12 END | 53.2 |
| HIERARCH ESO ISS PBLA12 START | 37.2 |
| HIERARCH ESO ISS PBLA12 END | 37.5 |
| HIERARCH ESO ISS PBL13 START | 95.429 |
| HIERARCH ESO ISS PBL13 END | 94.779 |
| HIERARCH ESO ISS PBLA13 START | 43.4 |
| HIERARCH ESO ISS PBLA13 END | 43.8 |
| HIERARCH ESO ISS PBL14 START | 114.696 |
| HIERARCH ESO ISS PBL14 END | 113.2 |
| HIERARCH ESO ISS PBLA14 START | 73.459 |
| HIERARCH ESO ISS PBLA14 END | 74.026 |
| HIERARCH ESO ISS PBL23 START | 42.672 |
| HIERARCH ESO ISS PBL23 END | 42.299 |
| HIERARCH ESO ISS PBLA23 START | 51.3 |
| HIERARCH ESO ISS PBLA23 END | 51.7 |
| HIERARCH ESO ISS PBL24 START | 78.283 |
| HIERARCH ESO ISS PBL24 END | 77.2 |
| HIERARCH ESO ISS PBLA24 START | 97.314 |
| HIERARCH ESO ISS PBLA24 END | 98.209 |
| HIERARCH ESO ISS PBL34 START | 57.506 |
| HIERARCH ESO ISS PBL34 END | 57.034 |
| HIERARCH ESO ISS PBLA34 START | 129.564 |
| HIERARCH ESO ISS PBLA34 END | 130.748 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002226 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003108 |
| HIERARCH ESO ISS AMBI TEMP | 14.31 |
| HIERARCH ESO ISS AMBI FWHM START | 1.32 |
| HIERARCH ESO ISS AMBI FWHM END | 0.92 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |