Exposure
- ID
- GRAVI.2023-07-31T03:47:11.495_1
- Header ID
- GRAVI.2023-07-31T03:47:11.495
- Date updated
- 2023-07-31 04:00:26 UTC+0000
- Release date
- 2024-07-31 04:00:25 UTC+0000
- UTC Start
- 2023-07-31 03:47:11.495
- UTC End
- 2023-07-31 03:53:11.495
- MJD Start
- 60156.15777193
- MJD End
- 60156.16193859666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003712
- Ambient temperature (°C)
- 18.2
- Seeing (arcsec)
- 0.895
Observation
- ID
- 56481
- 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
- 41857
- Name
- S4
- RA
- 266.417098
- DEC
- -29.00725
Instrument
Projected baselines
| Baseline | Length start | Length end | Angle start | Angle end |
|---|---|---|---|---|
| U1-U2 | 54.1600 | 53.9150 | 36.0000 | 36.5000 |
| U1-U3 | 96.9940 | 96.4270 | 42.4000 | 42.8000 |
| U1-U4 | 118.3260 | 117.0080 | 71.9310 | 72.5150 |
| U2-U3 | 43.5720 | 43.2460 | 50.2000 | 50.7000 |
| U2-U4 | 80.9320 | 79.9670 | 95.0250 | 95.8790 |
| U3-U4 | 58.6890 | 58.2530 | 126.5670 | 127.6790 |
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 | 60156.15777193 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417098 |
| 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 | 54.16 |
| HIERARCH ESO ISS PBL12 END | 53.915 |
| HIERARCH ESO ISS PBLA12 START | 36.0 |
| HIERARCH ESO ISS PBLA12 END | 36.5 |
| HIERARCH ESO ISS PBL13 START | 96.994 |
| HIERARCH ESO ISS PBL13 END | 96.427 |
| HIERARCH ESO ISS PBLA13 START | 42.4 |
| HIERARCH ESO ISS PBLA13 END | 42.8 |
| HIERARCH ESO ISS PBL14 START | 118.326 |
| HIERARCH ESO ISS PBL14 END | 117.008 |
| HIERARCH ESO ISS PBLA14 START | 71.931 |
| HIERARCH ESO ISS PBLA14 END | 72.515 |
| HIERARCH ESO ISS PBL23 START | 43.572 |
| HIERARCH ESO ISS PBL23 END | 43.246 |
| HIERARCH ESO ISS PBLA23 START | 50.2 |
| HIERARCH ESO ISS PBLA23 END | 50.7 |
| HIERARCH ESO ISS PBL24 START | 80.932 |
| HIERARCH ESO ISS PBL24 END | 79.967 |
| HIERARCH ESO ISS PBLA24 START | 95.025 |
| HIERARCH ESO ISS PBLA24 END | 95.879 |
| HIERARCH ESO ISS PBL34 START | 58.689 |
| HIERARCH ESO ISS PBL34 END | 58.253 |
| HIERARCH ESO ISS PBLA34 START | 126.567 |
| HIERARCH ESO ISS PBLA34 END | 127.679 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00438 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003044 |
| HIERARCH ESO ISS AMBI TEMP | 18.2 |
| HIERARCH ESO ISS AMBI FWHM START | 0.83 |
| HIERARCH ESO ISS AMBI FWHM END | 0.96 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |