Exposure
- ID
- GRAVI.2023-08-02T23:43:36.827_2
- Header ID
- GRAVI.2023-08-02T23:43:36.827
- Date updated
- 2023-08-02 23:55:37 UTC+0000
- Release date
- 2024-08-02 23:55:37 UTC+0000
- UTC Start
- 2023-08-02 23:43:36.827
- UTC End
- 2023-08-02 23:49:36.827
- MJD Start
- 60158.98862068
- MJD End
- 60158.992787346666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006354
- Ambient temperature (°C)
- 19.13
- Seeing (arcsec)
- 0.6599999999999999
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 | 56.3820 | 56.4040 | 11.2000 | 12.1000 |
| U1-U3 | 101.5900 | 101.6840 | 16.9000 | 17.8000 |
| U1-U4 | 123.4450 | 124.1400 | 43.3060 | 44.4310 |
| U2-U3 | 45.8330 | 45.9190 | 23.9000 | 24.9000 |
| U2-U4 | 81.4410 | 82.2550 | 64.9260 | 65.9770 |
| U3-U4 | 55.6940 | 56.3740 | 97.6290 | 98.3220 |
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 | 60158.98862068 |
| 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 | 56.382 |
| HIERARCH ESO ISS PBL12 END | 56.404 |
| HIERARCH ESO ISS PBLA12 START | 11.2 |
| HIERARCH ESO ISS PBLA12 END | 12.1 |
| HIERARCH ESO ISS PBL13 START | 101.59 |
| HIERARCH ESO ISS PBL13 END | 101.684 |
| HIERARCH ESO ISS PBLA13 START | 16.9 |
| HIERARCH ESO ISS PBLA13 END | 17.8 |
| HIERARCH ESO ISS PBL14 START | 123.445 |
| HIERARCH ESO ISS PBL14 END | 124.14 |
| HIERARCH ESO ISS PBLA14 START | 43.306 |
| HIERARCH ESO ISS PBLA14 END | 44.431 |
| HIERARCH ESO ISS PBL23 START | 45.833 |
| HIERARCH ESO ISS PBL23 END | 45.919 |
| HIERARCH ESO ISS PBLA23 START | 23.9 |
| HIERARCH ESO ISS PBLA23 END | 24.9 |
| HIERARCH ESO ISS PBL24 START | 81.441 |
| HIERARCH ESO ISS PBL24 END | 82.255 |
| HIERARCH ESO ISS PBLA24 START | 64.926 |
| HIERARCH ESO ISS PBLA24 END | 65.977 |
| HIERARCH ESO ISS PBL34 START | 55.694 |
| HIERARCH ESO ISS PBL34 END | 56.374 |
| HIERARCH ESO ISS PBLA34 START | 97.629 |
| HIERARCH ESO ISS PBLA34 END | 98.322 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006731 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005977 |
| HIERARCH ESO ISS AMBI TEMP | 19.13 |
| HIERARCH ESO ISS AMBI FWHM START | 0.7 |
| HIERARCH ESO ISS AMBI FWHM END | 0.62 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |