Exposure
- ID
- GRAVI.2023-07-01T04:09:33.120_2
- Header ID
- GRAVI.2023-07-01T04:09:33.120
- Date updated
- 2023-07-01 04:21:05 UTC+0000
- Release date
- 2024-07-01 04:21:05 UTC+0000
- UTC Start
- 2023-07-01 04:09:33.120
- UTC End
- 2023-07-01 04:15:33.120
- MJD Start
- 60126.1733
- MJD End
- 60126.1774666667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007877
- Ambient temperature (°C)
- 18.69
- Seeing (arcsec)
- 0.45
Observation
- ID
- 56080
- Category
- science
- Program ID
- 111.24H1.003
- 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
- 41180
- Name
- IRS16C
- RA
- 266.417108333333
- DEC
- -29.0076453055556
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 | 56.2910 | 56.2220 | 27.8000 | 28.5000 |
| U1-U3 | 101.9270 | 101.7750 | 34.2000 | 34.9000 |
| U1-U4 | 129.6410 | 129.3420 | 62.3860 | 63.1030 |
| U2-U3 | 46.4070 | 46.3230 | 42.0000 | 42.6000 |
| U2-U4 | 89.1810 | 88.9910 | 83.3570 | 84.1280 |
| U3-U4 | 62.4400 | 62.3790 | 112.8010 | 113.6090 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60126.1733 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.416858 |
| 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 | 56.291 |
| HIERARCH ESO ISS PBL12 END | 56.222 |
| HIERARCH ESO ISS PBLA12 START | 27.8 |
| HIERARCH ESO ISS PBLA12 END | 28.5 |
| HIERARCH ESO ISS PBL13 START | 101.927 |
| HIERARCH ESO ISS PBL13 END | 101.775 |
| HIERARCH ESO ISS PBLA13 START | 34.2 |
| HIERARCH ESO ISS PBLA13 END | 34.9 |
| HIERARCH ESO ISS PBL14 START | 129.641 |
| HIERARCH ESO ISS PBL14 END | 129.342 |
| HIERARCH ESO ISS PBLA14 START | 62.386 |
| HIERARCH ESO ISS PBLA14 END | 63.103 |
| HIERARCH ESO ISS PBL23 START | 46.407 |
| HIERARCH ESO ISS PBL23 END | 46.323 |
| HIERARCH ESO ISS PBLA23 START | 42.0 |
| HIERARCH ESO ISS PBLA23 END | 42.6 |
| HIERARCH ESO ISS PBL24 START | 89.181 |
| HIERARCH ESO ISS PBL24 END | 88.991 |
| HIERARCH ESO ISS PBLA24 START | 83.357 |
| HIERARCH ESO ISS PBLA24 END | 84.128 |
| HIERARCH ESO ISS PBL34 START | 62.44 |
| HIERARCH ESO ISS PBL34 END | 62.379 |
| HIERARCH ESO ISS PBLA34 START | 112.801 |
| HIERARCH ESO ISS PBLA34 END | 113.609 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008039 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007715 |
| HIERARCH ESO ISS AMBI TEMP | 18.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.49 |
| HIERARCH ESO ISS AMBI FWHM END | 0.41 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5231 |