Exposure
- ID
- GRAVI.2023-08-31T00:27:29.409_2
- Header ID
- GRAVI.2023-08-31T00:27:29.409
- Date updated
- 2023-08-31 00:40:30 UTC+0000
- Release date
- 2024-08-31 00:40:30 UTC+0000
- UTC Start
- 2023-08-31 00:27:29.409
- UTC End
- 2023-08-31 00:33:29.409
- MJD Start
- 60187.01909038
- MJD End
- 60187.02325704667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003706
- Ambient temperature (°C)
- 13.74
- Seeing (arcsec)
- 0.885
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 | 56.0810 | 55.9860 | 29.6000 | 30.2000 |
| U1-U3 | 101.4520 | 101.2340 | 36.0000 | 36.6000 |
| U1-U4 | 128.6630 | 128.1840 | 64.3250 | 65.0100 |
| U2-U3 | 46.1410 | 46.0170 | 43.8000 | 44.4000 |
| U2-U4 | 88.5280 | 88.1880 | 85.4720 | 86.2420 |
| U3-U4 | 62.1960 | 62.0500 | 115.0560 | 115.9060 |
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 | 60187.01909038 |
| 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 | 56.081 |
| HIERARCH ESO ISS PBL12 END | 55.986 |
| HIERARCH ESO ISS PBLA12 START | 29.6 |
| HIERARCH ESO ISS PBLA12 END | 30.2 |
| HIERARCH ESO ISS PBL13 START | 101.452 |
| HIERARCH ESO ISS PBL13 END | 101.234 |
| HIERARCH ESO ISS PBLA13 START | 36.0 |
| HIERARCH ESO ISS PBLA13 END | 36.6 |
| HIERARCH ESO ISS PBL14 START | 128.663 |
| HIERARCH ESO ISS PBL14 END | 128.184 |
| HIERARCH ESO ISS PBLA14 START | 64.325 |
| HIERARCH ESO ISS PBLA14 END | 65.01 |
| HIERARCH ESO ISS PBL23 START | 46.141 |
| HIERARCH ESO ISS PBL23 END | 46.017 |
| HIERARCH ESO ISS PBLA23 START | 43.8 |
| HIERARCH ESO ISS PBLA23 END | 44.4 |
| HIERARCH ESO ISS PBL24 START | 88.528 |
| HIERARCH ESO ISS PBL24 END | 88.188 |
| HIERARCH ESO ISS PBLA24 START | 85.472 |
| HIERARCH ESO ISS PBLA24 END | 86.242 |
| HIERARCH ESO ISS PBL34 START | 62.196 |
| HIERARCH ESO ISS PBL34 END | 62.05 |
| HIERARCH ESO ISS PBLA34 START | 115.056 |
| HIERARCH ESO ISS PBLA34 END | 115.906 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003906 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003506 |
| HIERARCH ESO ISS AMBI TEMP | 13.74 |
| HIERARCH ESO ISS AMBI FWHM START | 0.9 |
| HIERARCH ESO ISS AMBI FWHM END | 0.87 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |