Exposure
- ID
- GRAVI.2023-08-31T01:46:53.610_2
- Header ID
- GRAVI.2023-08-31T01:46:53.610
- Date updated
- 2023-08-31 02:00:24 UTC+0000
- Release date
- 2024-08-31 02:00:24 UTC+0000
- UTC Start
- 2023-08-31 01:46:53.610
- UTC End
- 2023-08-31 01:52:53.610
- MJD Start
- 60187.0742316
- MJD End
- 60187.07839826667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0024415
- Ambient temperature (°C)
- 14.38
- Seeing (arcsec)
- 1.24
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 | 54.1010 | 53.8530 | 36.2000 | 36.6000 |
| U1-U3 | 96.8570 | 96.2850 | 42.5000 | 42.9000 |
| U1-U4 | 118.0070 | 116.6770 | 72.0760 | 72.6560 |
| U2-U3 | 43.4940 | 43.1640 | 50.3000 | 50.8000 |
| U2-U4 | 80.6980 | 79.7250 | 95.2340 | 96.0890 |
| U3-U4 | 58.5820 | 58.1450 | 126.8390 | 127.9540 |
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 | 60187.0742316 |
| 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 | 54.101 |
| HIERARCH ESO ISS PBL12 END | 53.853 |
| HIERARCH ESO ISS PBLA12 START | 36.2 |
| HIERARCH ESO ISS PBLA12 END | 36.6 |
| HIERARCH ESO ISS PBL13 START | 96.857 |
| HIERARCH ESO ISS PBL13 END | 96.285 |
| HIERARCH ESO ISS PBLA13 START | 42.5 |
| HIERARCH ESO ISS PBLA13 END | 42.9 |
| HIERARCH ESO ISS PBL14 START | 118.007 |
| HIERARCH ESO ISS PBL14 END | 116.677 |
| HIERARCH ESO ISS PBLA14 START | 72.076 |
| HIERARCH ESO ISS PBLA14 END | 72.656 |
| HIERARCH ESO ISS PBL23 START | 43.494 |
| HIERARCH ESO ISS PBL23 END | 43.164 |
| HIERARCH ESO ISS PBLA23 START | 50.3 |
| HIERARCH ESO ISS PBLA23 END | 50.8 |
| HIERARCH ESO ISS PBL24 START | 80.698 |
| HIERARCH ESO ISS PBL24 END | 79.725 |
| HIERARCH ESO ISS PBLA24 START | 95.234 |
| HIERARCH ESO ISS PBLA24 END | 96.089 |
| HIERARCH ESO ISS PBL34 START | 58.582 |
| HIERARCH ESO ISS PBL34 END | 58.145 |
| HIERARCH ESO ISS PBLA34 START | 126.839 |
| HIERARCH ESO ISS PBLA34 END | 127.954 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002872 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002011 |
| HIERARCH ESO ISS AMBI TEMP | 14.38 |
| HIERARCH ESO ISS AMBI FWHM START | 1.08 |
| HIERARCH ESO ISS AMBI FWHM END | 1.4 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |