Exposure
- ID
- GRAVI.2023-08-02T23:51:09.846_2
- Header ID
- GRAVI.2023-08-02T23:51:09.846
- Date updated
- 2023-08-03 00:05:26 UTC+0000
- Release date
- 2024-08-03 00:05:26 UTC+0000
- UTC Start
- 2023-08-02 23:51:09.846
- UTC End
- 2023-08-02 23:57:09.846
- MJD Start
- 60158.99386396
- MJD End
- 60158.998030626666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.008242
- Ambient temperature (°C)
- 19.17
- Seeing (arcsec)
- 0.58
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 | 56.4070 | 56.4290 | 12.2000 | 13.1000 |
| U1-U3 | 101.7000 | 101.7940 | 18.0000 | 18.9000 |
| U1-U4 | 124.2560 | 124.9230 | 44.6190 | 45.7140 |
| U2-U3 | 45.9330 | 46.0180 | 25.1000 | 26.1000 |
| U2-U4 | 82.3900 | 83.1620 | 66.1520 | 67.1730 |
| U3-U4 | 56.4860 | 57.1240 | 98.4390 | 99.1300 |
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 | 60158.99386396 |
| 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 | 56.407 |
| HIERARCH ESO ISS PBL12 END | 56.429 |
| HIERARCH ESO ISS PBLA12 START | 12.2 |
| HIERARCH ESO ISS PBLA12 END | 13.1 |
| HIERARCH ESO ISS PBL13 START | 101.7 |
| HIERARCH ESO ISS PBL13 END | 101.794 |
| HIERARCH ESO ISS PBLA13 START | 18.0 |
| HIERARCH ESO ISS PBLA13 END | 18.9 |
| HIERARCH ESO ISS PBL14 START | 124.256 |
| HIERARCH ESO ISS PBL14 END | 124.923 |
| HIERARCH ESO ISS PBLA14 START | 44.619 |
| HIERARCH ESO ISS PBLA14 END | 45.714 |
| HIERARCH ESO ISS PBL23 START | 45.933 |
| HIERARCH ESO ISS PBL23 END | 46.018 |
| HIERARCH ESO ISS PBLA23 START | 25.1 |
| HIERARCH ESO ISS PBLA23 END | 26.1 |
| HIERARCH ESO ISS PBL24 START | 82.39 |
| HIERARCH ESO ISS PBL24 END | 83.162 |
| HIERARCH ESO ISS PBLA24 START | 66.152 |
| HIERARCH ESO ISS PBLA24 END | 67.173 |
| HIERARCH ESO ISS PBL34 START | 56.486 |
| HIERARCH ESO ISS PBL34 END | 57.124 |
| HIERARCH ESO ISS PBLA34 START | 98.439 |
| HIERARCH ESO ISS PBLA34 END | 99.13 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.009667 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006817 |
| HIERARCH ESO ISS AMBI TEMP | 19.17 |
| HIERARCH ESO ISS AMBI FWHM START | 0.57 |
| HIERARCH ESO ISS AMBI FWHM END | 0.59 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |