Exposure
- ID
- GRAVI.2023-08-31T02:26:05.709_2
- Header ID
- GRAVI.2023-08-31T02:26:05.709
- Date updated
- 2023-08-31 02:40:21 UTC+0000
- Release date
- 2024-08-31 02:40:21 UTC+0000
- UTC Start
- 2023-08-31 02:26:05.709
- UTC End
- 2023-08-31 02:32:05.709
- MJD Start
- 60187.10145497
- MJD End
- 60187.10562163666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031695
- Ambient temperature (°C)
- 14.24
- Seeing (arcsec)
- 0.99
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 | 52.3790 | 52.0400 | 38.5000 | 38.8000 |
| U1-U3 | 92.8990 | 92.1240 | 44.7000 | 45.0000 |
| U1-U4 | 108.9000 | 107.1390 | 75.5090 | 76.0670 |
| U2-U3 | 41.2230 | 40.7810 | 52.7000 | 53.0000 |
| U2-U4 | 74.1170 | 72.8680 | 100.6850 | 101.6710 |
| U3-U4 | 55.7320 | 55.2220 | 134.0430 | 135.3580 |
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 | 60187.10145497 |
| 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 | 52.379 |
| HIERARCH ESO ISS PBL12 END | 52.04 |
| HIERARCH ESO ISS PBLA12 START | 38.5 |
| HIERARCH ESO ISS PBLA12 END | 38.8 |
| HIERARCH ESO ISS PBL13 START | 92.899 |
| HIERARCH ESO ISS PBL13 END | 92.124 |
| HIERARCH ESO ISS PBLA13 START | 44.7 |
| HIERARCH ESO ISS PBLA13 END | 45.0 |
| HIERARCH ESO ISS PBL14 START | 108.9 |
| HIERARCH ESO ISS PBL14 END | 107.139 |
| HIERARCH ESO ISS PBLA14 START | 75.509 |
| HIERARCH ESO ISS PBLA14 END | 76.067 |
| HIERARCH ESO ISS PBL23 START | 41.223 |
| HIERARCH ESO ISS PBL23 END | 40.781 |
| HIERARCH ESO ISS PBLA23 START | 52.7 |
| HIERARCH ESO ISS PBLA23 END | 53.0 |
| HIERARCH ESO ISS PBL24 START | 74.117 |
| HIERARCH ESO ISS PBL24 END | 72.868 |
| HIERARCH ESO ISS PBLA24 START | 100.685 |
| HIERARCH ESO ISS PBLA24 END | 101.671 |
| HIERARCH ESO ISS PBL34 START | 55.732 |
| HIERARCH ESO ISS PBL34 END | 55.222 |
| HIERARCH ESO ISS PBLA34 START | 134.043 |
| HIERARCH ESO ISS PBLA34 END | 135.358 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002892 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003447 |
| HIERARCH ESO ISS AMBI TEMP | 14.24 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 0.98 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |