Exposure
- ID
- GRAVI.2023-08-31T00:03:14.347_2
- Header ID
- GRAVI.2023-08-31T00:03:14.347
- Date updated
- 2023-08-31 00:20:35 UTC+0000
- Release date
- 2024-08-31 00:20:34 UTC+0000
- UTC Start
- 2023-08-31 00:03:14.347
- UTC End
- 2023-08-31 00:09:14.347
- MJD Start
- 60187.00224939
- MJD End
- 60187.00641605667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003103
- Ambient temperature (°C)
- 14.02
- Seeing (arcsec)
- 0.825
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 | 56.3500 | 56.2910 | 27.2000 | 27.8000 |
| U1-U3 | 102.0590 | 101.9270 | 33.5000 | 34.2000 |
| U1-U4 | 129.8760 | 129.6410 | 61.6510 | 62.3840 |
| U2-U3 | 46.4770 | 46.4070 | 41.3000 | 41.9000 |
| U2-U4 | 89.3180 | 89.1810 | 82.5770 | 83.3550 |
| U3-U4 | 62.4690 | 62.4400 | 111.9990 | 112.7990 |
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 | 60187.00224939 |
| 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 | 56.35 |
| HIERARCH ESO ISS PBL12 END | 56.291 |
| HIERARCH ESO ISS PBLA12 START | 27.2 |
| HIERARCH ESO ISS PBLA12 END | 27.8 |
| HIERARCH ESO ISS PBL13 START | 102.059 |
| HIERARCH ESO ISS PBL13 END | 101.927 |
| HIERARCH ESO ISS PBLA13 START | 33.5 |
| HIERARCH ESO ISS PBLA13 END | 34.2 |
| HIERARCH ESO ISS PBL14 START | 129.876 |
| HIERARCH ESO ISS PBL14 END | 129.641 |
| HIERARCH ESO ISS PBLA14 START | 61.651 |
| HIERARCH ESO ISS PBLA14 END | 62.384 |
| HIERARCH ESO ISS PBL23 START | 46.477 |
| HIERARCH ESO ISS PBL23 END | 46.407 |
| HIERARCH ESO ISS PBLA23 START | 41.3 |
| HIERARCH ESO ISS PBLA23 END | 41.9 |
| HIERARCH ESO ISS PBL24 START | 89.318 |
| HIERARCH ESO ISS PBL24 END | 89.181 |
| HIERARCH ESO ISS PBLA24 START | 82.577 |
| HIERARCH ESO ISS PBLA24 END | 83.355 |
| HIERARCH ESO ISS PBL34 START | 62.469 |
| HIERARCH ESO ISS PBL34 END | 62.44 |
| HIERARCH ESO ISS PBLA34 START | 111.999 |
| HIERARCH ESO ISS PBLA34 END | 112.799 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002762 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003444 |
| HIERARCH ESO ISS AMBI TEMP | 14.02 |
| HIERARCH ESO ISS AMBI FWHM START | 0.83 |
| HIERARCH ESO ISS AMBI FWHM END | 0.82 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |