Exposure
- ID
- GRAVI.2023-08-31T02:18:20.690_2
- Header ID
- GRAVI.2023-08-31T02:18:20.690
- Date updated
- 2023-08-31 02:35:23 UTC+0000
- Release date
- 2024-08-31 02:35:23 UTC+0000
- UTC Start
- 2023-08-31 02:18:20.690
- UTC End
- 2023-08-31 02:24:20.690
- MJD Start
- 60187.0960728
- MJD End
- 60187.100239466665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029995
- Ambient temperature (°C)
- 14.35
- Seeing (arcsec)
- 0.98
Observation
- ID
- 56795
- Category
- science
- Program ID
- 111.24H1.005
- 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 | 52.7620 | 52.4440 | 38.1000 | 38.4000 |
| U1-U3 | 93.7740 | 93.0460 | 44.3000 | 44.7000 |
| U1-U4 | 110.8960 | 109.2330 | 74.8450 | 75.4010 |
| U2-U3 | 41.7240 | 41.3070 | 52.3000 | 52.6000 |
| U2-U4 | 75.5420 | 74.3540 | 99.5500 | 100.4970 |
| U3-U4 | 56.3260 | 55.8300 | 132.5300 | 133.7920 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60187.0960728 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41685 |
| DEC | -29.00732 |
| 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 | 52.762 |
| HIERARCH ESO ISS PBL12 END | 52.444 |
| HIERARCH ESO ISS PBLA12 START | 38.1 |
| HIERARCH ESO ISS PBLA12 END | 38.4 |
| HIERARCH ESO ISS PBL13 START | 93.774 |
| HIERARCH ESO ISS PBL13 END | 93.046 |
| HIERARCH ESO ISS PBLA13 START | 44.3 |
| HIERARCH ESO ISS PBLA13 END | 44.7 |
| HIERARCH ESO ISS PBL14 START | 110.896 |
| HIERARCH ESO ISS PBL14 END | 109.233 |
| HIERARCH ESO ISS PBLA14 START | 74.845 |
| HIERARCH ESO ISS PBLA14 END | 75.401 |
| HIERARCH ESO ISS PBL23 START | 41.724 |
| HIERARCH ESO ISS PBL23 END | 41.307 |
| HIERARCH ESO ISS PBLA23 START | 52.3 |
| HIERARCH ESO ISS PBLA23 END | 52.6 |
| HIERARCH ESO ISS PBL24 START | 75.542 |
| HIERARCH ESO ISS PBL24 END | 74.354 |
| HIERARCH ESO ISS PBLA24 START | 99.55 |
| HIERARCH ESO ISS PBLA24 END | 100.497 |
| HIERARCH ESO ISS PBL34 START | 56.326 |
| HIERARCH ESO ISS PBL34 END | 55.83 |
| HIERARCH ESO ISS PBLA34 START | 132.53 |
| HIERARCH ESO ISS PBLA34 END | 133.792 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002608 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003391 |
| HIERARCH ESO ISS AMBI TEMP | 14.35 |
| HIERARCH ESO ISS AMBI FWHM START | 1.06 |
| HIERARCH ESO ISS AMBI FWHM END | 0.9 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |