Exposure
- ID
- GRAVI.2023-07-31T03:37:53.472_1
- Header ID
- GRAVI.2023-07-31T03:37:53.472
- Date updated
- 2023-07-31 03:55:23 UTC+0000
- Release date
- 2024-07-31 03:55:23 UTC+0000
- UTC Start
- 2023-07-31 03:37:53.472
- UTC End
- 2023-07-31 03:43:53.472
- MJD Start
- 60156.15131333
- MJD End
- 60156.15547999667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003489
- Ambient temperature (°C)
- 18.25
- Seeing (arcsec)
- 1.075
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 | 54.4870 | 54.2630 | 35.4000 | 35.9000 |
| U1-U3 | 97.7520 | 97.2320 | 41.7000 | 42.2000 |
| U1-U4 | 120.0930 | 118.8800 | 71.0840 | 71.6750 |
| U2-U3 | 44.0090 | 43.7090 | 49.6000 | 50.0000 |
| U2-U4 | 82.2310 | 81.3380 | 93.8220 | 94.6560 |
| U3-U4 | 59.2820 | 58.8730 | 125.0200 | 126.0900 |
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 | 60156.15131333 |
| 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 | 54.487 |
| HIERARCH ESO ISS PBL12 END | 54.263 |
| HIERARCH ESO ISS PBLA12 START | 35.4 |
| HIERARCH ESO ISS PBLA12 END | 35.9 |
| HIERARCH ESO ISS PBL13 START | 97.752 |
| HIERARCH ESO ISS PBL13 END | 97.232 |
| HIERARCH ESO ISS PBLA13 START | 41.7 |
| HIERARCH ESO ISS PBLA13 END | 42.2 |
| HIERARCH ESO ISS PBL14 START | 120.093 |
| HIERARCH ESO ISS PBL14 END | 118.88 |
| HIERARCH ESO ISS PBLA14 START | 71.084 |
| HIERARCH ESO ISS PBLA14 END | 71.675 |
| HIERARCH ESO ISS PBL23 START | 44.009 |
| HIERARCH ESO ISS PBL23 END | 43.709 |
| HIERARCH ESO ISS PBLA23 START | 49.6 |
| HIERARCH ESO ISS PBLA23 END | 50.0 |
| HIERARCH ESO ISS PBL24 START | 82.231 |
| HIERARCH ESO ISS PBL24 END | 81.338 |
| HIERARCH ESO ISS PBLA24 START | 93.822 |
| HIERARCH ESO ISS PBLA24 END | 94.656 |
| HIERARCH ESO ISS PBL34 START | 59.282 |
| HIERARCH ESO ISS PBL34 END | 58.873 |
| HIERARCH ESO ISS PBLA34 START | 125.02 |
| HIERARCH ESO ISS PBLA34 END | 126.09 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.0041 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002878 |
| HIERARCH ESO ISS AMBI TEMP | 18.25 |
| HIERARCH ESO ISS AMBI FWHM START | 1.02 |
| HIERARCH ESO ISS AMBI FWHM END | 1.13 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |