Exposure
- ID
- GRAVI.2023-07-31T02:48:59.348_2
- Header ID
- GRAVI.2023-07-31T02:48:59.348
- Date updated
- 2023-07-31 03:05:15 UTC+0000
- Release date
- 2024-07-31 03:05:14 UTC+0000
- UTC Start
- 2023-07-31 02:48:59.348
- UTC End
- 2023-07-31 02:54:59.348
- MJD Start
- 60156.11735356
- MJD End
- 60156.12152022667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0044385
- Ambient temperature (°C)
- 18.12
- Seeing (arcsec)
- 0.885
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 | 55.7610 | 55.6330 | 31.4000 | 32.0000 |
| U1-U3 | 100.7130 | 100.4150 | 37.8000 | 38.4000 |
| U1-U4 | 127.0040 | 126.3180 | 66.3650 | 67.0180 |
| U2-U3 | 45.7190 | 45.5480 | 45.6000 | 46.2000 |
| U2-U4 | 87.3340 | 86.8310 | 87.8080 | 88.5840 |
| U3-U4 | 61.6640 | 61.4300 | 117.6810 | 118.5840 |
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 | 60156.11735356 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41672 |
| DEC | -29.00715 |
| 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 | 55.761 |
| HIERARCH ESO ISS PBL12 END | 55.633 |
| HIERARCH ESO ISS PBLA12 START | 31.4 |
| HIERARCH ESO ISS PBLA12 END | 32.0 |
| HIERARCH ESO ISS PBL13 START | 100.713 |
| HIERARCH ESO ISS PBL13 END | 100.415 |
| HIERARCH ESO ISS PBLA13 START | 37.8 |
| HIERARCH ESO ISS PBLA13 END | 38.4 |
| HIERARCH ESO ISS PBL14 START | 127.004 |
| HIERARCH ESO ISS PBL14 END | 126.318 |
| HIERARCH ESO ISS PBLA14 START | 66.365 |
| HIERARCH ESO ISS PBLA14 END | 67.018 |
| HIERARCH ESO ISS PBL23 START | 45.719 |
| HIERARCH ESO ISS PBL23 END | 45.548 |
| HIERARCH ESO ISS PBLA23 START | 45.6 |
| HIERARCH ESO ISS PBLA23 END | 46.2 |
| HIERARCH ESO ISS PBL24 START | 87.334 |
| HIERARCH ESO ISS PBL24 END | 86.831 |
| HIERARCH ESO ISS PBLA24 START | 87.808 |
| HIERARCH ESO ISS PBLA24 END | 88.584 |
| HIERARCH ESO ISS PBL34 START | 61.664 |
| HIERARCH ESO ISS PBL34 END | 61.43 |
| HIERARCH ESO ISS PBLA34 START | 117.681 |
| HIERARCH ESO ISS PBLA34 END | 118.584 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004414 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004463 |
| HIERARCH ESO ISS AMBI TEMP | 18.12 |
| HIERARCH ESO ISS AMBI FWHM START | 0.87 |
| 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 |