Exposure
- ID
- GRAVI.2023-08-03T03:30:37.402_2
- Header ID
- GRAVI.2023-08-03T03:30:37.402
- Date updated
- 2023-08-03 03:45:39 UTC+0000
- Release date
- 2024-08-03 03:45:39 UTC+0000
- UTC Start
- 2023-08-03 03:30:37.402
- UTC End
- 2023-08-03 03:36:37.402
- MJD Start
- 60159.14626623
- MJD End
- 60159.15043289666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006131
- Ambient temperature (°C)
- 18.87
- Seeing (arcsec)
- 0.655
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 | 54.3320 | 54.0970 | 35.7000 | 36.2000 |
| U1-U3 | 97.3920 | 96.8470 | 42.0000 | 42.5000 |
| U1-U4 | 119.2520 | 117.9840 | 71.4960 | 72.0850 |
| U2-U3 | 43.8020 | 43.4880 | 49.9000 | 50.3000 |
| U2-U4 | 81.6120 | 80.6810 | 94.4020 | 95.2480 |
| U3-U4 | 58.9980 | 58.5750 | 125.7640 | 126.8570 |
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 | 60159.14626623 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417034 |
| DEC | -29.00737 |
| 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 | 54.332 |
| HIERARCH ESO ISS PBL12 END | 54.097 |
| HIERARCH ESO ISS PBLA12 START | 35.7 |
| HIERARCH ESO ISS PBLA12 END | 36.2 |
| HIERARCH ESO ISS PBL13 START | 97.392 |
| HIERARCH ESO ISS PBL13 END | 96.847 |
| HIERARCH ESO ISS PBLA13 START | 42.0 |
| HIERARCH ESO ISS PBLA13 END | 42.5 |
| HIERARCH ESO ISS PBL14 START | 119.252 |
| HIERARCH ESO ISS PBL14 END | 117.984 |
| HIERARCH ESO ISS PBLA14 START | 71.496 |
| HIERARCH ESO ISS PBLA14 END | 72.085 |
| HIERARCH ESO ISS PBL23 START | 43.802 |
| HIERARCH ESO ISS PBL23 END | 43.488 |
| HIERARCH ESO ISS PBLA23 START | 49.9 |
| HIERARCH ESO ISS PBLA23 END | 50.3 |
| HIERARCH ESO ISS PBL24 START | 81.612 |
| HIERARCH ESO ISS PBL24 END | 80.681 |
| HIERARCH ESO ISS PBLA24 START | 94.402 |
| HIERARCH ESO ISS PBLA24 END | 95.248 |
| HIERARCH ESO ISS PBL34 START | 58.998 |
| HIERARCH ESO ISS PBL34 END | 58.575 |
| HIERARCH ESO ISS PBLA34 START | 125.764 |
| HIERARCH ESO ISS PBLA34 END | 126.857 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006463 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005799 |
| HIERARCH ESO ISS AMBI TEMP | 18.87 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 0.72 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |