Exposure
- ID
- GRAVI.2023-08-03T00:07:09.887_2
- Header ID
- GRAVI.2023-08-03T00:07:09.887
- Date updated
- 2023-08-03 00:20:34 UTC+0000
- Release date
- 2024-08-03 00:20:34 UTC+0000
- UTC Start
- 2023-08-03 00:07:09.887
- UTC End
- 2023-08-03 00:13:09.887
- MJD Start
- 60159.00497554
- MJD End
- 60159.00914220667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0077155
- Ambient temperature (°C)
- 18.91
- Seeing (arcsec)
- 0.55
Observation
- ID
- 56474
- 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
- 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 | 56.4600 | 56.4800 | 14.4000 | 15.2000 |
| U1-U3 | 101.9260 | 102.0110 | 20.3000 | 21.2000 |
| U1-U4 | 125.8470 | 126.4410 | 47.2700 | 48.3050 |
| U2-U3 | 46.1360 | 46.2130 | 27.6000 | 28.5000 |
| U2-U4 | 84.2220 | 84.8980 | 68.6230 | 69.5880 |
| U3-U4 | 57.9930 | 58.5440 | 100.1370 | 100.8270 |
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 | 60159.00497554 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41687 |
| 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 | 56.46 |
| HIERARCH ESO ISS PBL12 END | 56.48 |
| HIERARCH ESO ISS PBLA12 START | 14.4 |
| HIERARCH ESO ISS PBLA12 END | 15.2 |
| HIERARCH ESO ISS PBL13 START | 101.926 |
| HIERARCH ESO ISS PBL13 END | 102.011 |
| HIERARCH ESO ISS PBLA13 START | 20.3 |
| HIERARCH ESO ISS PBLA13 END | 21.2 |
| HIERARCH ESO ISS PBL14 START | 125.847 |
| HIERARCH ESO ISS PBL14 END | 126.441 |
| HIERARCH ESO ISS PBLA14 START | 47.27 |
| HIERARCH ESO ISS PBLA14 END | 48.305 |
| HIERARCH ESO ISS PBL23 START | 46.136 |
| HIERARCH ESO ISS PBL23 END | 46.213 |
| HIERARCH ESO ISS PBLA23 START | 27.6 |
| HIERARCH ESO ISS PBLA23 END | 28.5 |
| HIERARCH ESO ISS PBL24 START | 84.222 |
| HIERARCH ESO ISS PBL24 END | 84.898 |
| HIERARCH ESO ISS PBLA24 START | 68.623 |
| HIERARCH ESO ISS PBLA24 END | 69.588 |
| HIERARCH ESO ISS PBL34 START | 57.993 |
| HIERARCH ESO ISS PBL34 END | 58.544 |
| HIERARCH ESO ISS PBLA34 START | 100.137 |
| HIERARCH ESO ISS PBLA34 END | 100.827 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008277 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007154 |
| HIERARCH ESO ISS AMBI TEMP | 18.91 |
| HIERARCH ESO ISS AMBI FWHM START | 0.53 |
| HIERARCH ESO ISS AMBI FWHM END | 0.57 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |