Exposure
- ID
- GRAVI.2023-08-01T00:17:24.775_2
- Header ID
- GRAVI.2023-08-01T00:17:24.775
- Date updated
- 2023-08-01 00:30:26 UTC+0000
- Release date
- 2024-08-01 00:30:26 UTC+0000
- UTC Start
- 2023-08-01 00:17:24.775
- UTC End
- 2023-08-01 00:23:24.775
- MJD Start
- 60157.0120923
- MJD End
- 60157.016258966665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027489999999999997
- Ambient temperature (°C)
- 18.27
- Seeing (arcsec)
- 1.195
Observation
- ID
- 56474
- Category
- science
- Program ID
- 111.24H1.004
- 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 | 56.4680 | 56.4870 | 14.7000 | 15.6000 |
| U1-U3 | 101.9570 | 102.0410 | 20.6000 | 21.5000 |
| U1-U4 | 126.0670 | 126.6490 | 47.6520 | 48.6790 |
| U2-U3 | 46.1640 | 46.2400 | 27.9000 | 28.9000 |
| U2-U4 | 84.4720 | 85.1330 | 68.9800 | 69.9370 |
| U3-U4 | 58.1980 | 58.7350 | 100.3920 | 101.0820 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60157.0120923 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.416855 |
| DEC | -29.00712 |
| 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 | 56.468 |
| HIERARCH ESO ISS PBL12 END | 56.487 |
| HIERARCH ESO ISS PBLA12 START | 14.7 |
| HIERARCH ESO ISS PBLA12 END | 15.6 |
| HIERARCH ESO ISS PBL13 START | 101.957 |
| HIERARCH ESO ISS PBL13 END | 102.041 |
| HIERARCH ESO ISS PBLA13 START | 20.6 |
| HIERARCH ESO ISS PBLA13 END | 21.5 |
| HIERARCH ESO ISS PBL14 START | 126.067 |
| HIERARCH ESO ISS PBL14 END | 126.649 |
| HIERARCH ESO ISS PBLA14 START | 47.652 |
| HIERARCH ESO ISS PBLA14 END | 48.679 |
| HIERARCH ESO ISS PBL23 START | 46.164 |
| HIERARCH ESO ISS PBL23 END | 46.24 |
| HIERARCH ESO ISS PBLA23 START | 27.9 |
| HIERARCH ESO ISS PBLA23 END | 28.9 |
| HIERARCH ESO ISS PBL24 START | 84.472 |
| HIERARCH ESO ISS PBL24 END | 85.133 |
| HIERARCH ESO ISS PBLA24 START | 68.98 |
| HIERARCH ESO ISS PBLA24 END | 69.937 |
| HIERARCH ESO ISS PBL34 START | 58.198 |
| HIERARCH ESO ISS PBL34 END | 58.735 |
| HIERARCH ESO ISS PBLA34 START | 100.392 |
| HIERARCH ESO ISS PBLA34 END | 101.082 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002999 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002499 |
| HIERARCH ESO ISS AMBI TEMP | 18.27 |
| HIERARCH ESO ISS AMBI FWHM START | 1.31 |
| HIERARCH ESO ISS AMBI FWHM END | 1.08 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |