Exposure
- ID
- GRAVI.2023-09-01T23:51:28.477_2
- Header ID
- GRAVI.2023-09-01T23:51:28.477
- Date updated
- 2023-09-02 00:05:24 UTC+0000
- Release date
- 2024-09-02 00:05:24 UTC+0000
- UTC Start
- 2023-09-01 23:51:28.477
- UTC End
- 2023-09-01 23:57:28.477
- MJD Start
- 60188.9940796
- MJD End
- 60188.99824626667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.002158
- Ambient temperature (°C)
- 11.88
- Seeing (arcsec)
- 1.455
Observation
- ID
- 56827
- 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
- 42114
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007644694444444
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 | 56.3820 | 56.3270 | 26.8000 | 27.4000 |
| U1-U3 | 102.1270 | 102.0090 | 33.1000 | 33.8000 |
| U1-U4 | 129.9860 | 129.7900 | 61.2120 | 61.9500 |
| U2-U3 | 46.5130 | 46.4510 | 40.8000 | 41.5000 |
| U2-U4 | 89.3740 | 89.2700 | 82.1170 | 82.8930 |
| U3-U4 | 62.4710 | 62.4610 | 111.5330 | 112.3210 |
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 | 60188.9940796 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.416848 |
| DEC | -29.00725 |
| 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 | 56.382 |
| HIERARCH ESO ISS PBL12 END | 56.327 |
| HIERARCH ESO ISS PBLA12 START | 26.8 |
| HIERARCH ESO ISS PBLA12 END | 27.4 |
| HIERARCH ESO ISS PBL13 START | 102.127 |
| HIERARCH ESO ISS PBL13 END | 102.009 |
| HIERARCH ESO ISS PBLA13 START | 33.1 |
| HIERARCH ESO ISS PBLA13 END | 33.8 |
| HIERARCH ESO ISS PBL14 START | 129.986 |
| HIERARCH ESO ISS PBL14 END | 129.79 |
| HIERARCH ESO ISS PBLA14 START | 61.212 |
| HIERARCH ESO ISS PBLA14 END | 61.95 |
| HIERARCH ESO ISS PBL23 START | 46.513 |
| HIERARCH ESO ISS PBL23 END | 46.451 |
| HIERARCH ESO ISS PBLA23 START | 40.8 |
| HIERARCH ESO ISS PBLA23 END | 41.5 |
| HIERARCH ESO ISS PBL24 START | 89.374 |
| HIERARCH ESO ISS PBL24 END | 89.27 |
| HIERARCH ESO ISS PBLA24 START | 82.117 |
| HIERARCH ESO ISS PBLA24 END | 82.893 |
| HIERARCH ESO ISS PBL34 START | 62.471 |
| HIERARCH ESO ISS PBL34 END | 62.461 |
| HIERARCH ESO ISS PBLA34 START | 111.533 |
| HIERARCH ESO ISS PBLA34 END | 112.321 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001833 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002483 |
| HIERARCH ESO ISS AMBI TEMP | 11.88 |
| HIERARCH ESO ISS AMBI FWHM START | 1.74 |
| HIERARCH ESO ISS AMBI FWHM END | 1.17 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5209 |