Exposure
- ID
- GRAVI.2023-09-02T01:08:58.674_2
- Header ID
- GRAVI.2023-09-02T01:08:58.674
- Date updated
- 2023-09-02 01:20:20 UTC+0000
- Release date
- 2024-09-02 01:20:19 UTC+0000
- UTC Start
- 2023-09-02 01:08:58.674
- UTC End
- 2023-09-02 01:14:58.674
- MJD Start
- 60189.04790132
- MJD End
- 60189.05206798667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0031015
- Ambient temperature (°C)
- 11.35
- Seeing (arcsec)
- 0.935
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 | 55.0720 | 54.8870 | 33.9000 | 34.5000 |
| U1-U3 | 99.1120 | 98.6810 | 40.3000 | 40.8000 |
| U1-U4 | 123.2760 | 122.2650 | 69.2930 | 69.9070 |
| U2-U3 | 44.7950 | 44.5460 | 48.1000 | 48.6000 |
| U2-U4 | 84.5820 | 83.8350 | 91.4180 | 92.2240 |
| U3-U4 | 60.3750 | 60.0250 | 121.9970 | 122.9990 |
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 | 60189.04790132 |
| 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 | 55.072 |
| HIERARCH ESO ISS PBL12 END | 54.887 |
| HIERARCH ESO ISS PBLA12 START | 33.9 |
| HIERARCH ESO ISS PBLA12 END | 34.5 |
| HIERARCH ESO ISS PBL13 START | 99.112 |
| HIERARCH ESO ISS PBL13 END | 98.681 |
| HIERARCH ESO ISS PBLA13 START | 40.3 |
| HIERARCH ESO ISS PBLA13 END | 40.8 |
| HIERARCH ESO ISS PBL14 START | 123.276 |
| HIERARCH ESO ISS PBL14 END | 122.265 |
| HIERARCH ESO ISS PBLA14 START | 69.293 |
| HIERARCH ESO ISS PBLA14 END | 69.907 |
| HIERARCH ESO ISS PBL23 START | 44.795 |
| HIERARCH ESO ISS PBL23 END | 44.546 |
| HIERARCH ESO ISS PBLA23 START | 48.1 |
| HIERARCH ESO ISS PBLA23 END | 48.6 |
| HIERARCH ESO ISS PBL24 START | 84.582 |
| HIERARCH ESO ISS PBL24 END | 83.835 |
| HIERARCH ESO ISS PBLA24 START | 91.418 |
| HIERARCH ESO ISS PBLA24 END | 92.224 |
| HIERARCH ESO ISS PBL34 START | 60.375 |
| HIERARCH ESO ISS PBL34 END | 60.025 |
| HIERARCH ESO ISS PBLA34 START | 121.997 |
| HIERARCH ESO ISS PBLA34 END | 122.999 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003137 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003066 |
| HIERARCH ESO ISS AMBI TEMP | 11.35 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 1.06 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5209 |