Exposure
- ID
- GRAVI.2023-08-31T02:41:50.749_2
- Header ID
- GRAVI.2023-08-31T02:41:50.749
- Date updated
- 2023-08-31 03:00:15 UTC+0000
- Release date
- 2023-08-31 02:41:50 UTC+0000
- UTC Start
- 2023-08-31 02:41:50.749
- UTC End
- 2023-08-31 02:47:50.749
- MJD Start
- 60187.11239293
- MJD End
- 60187.11655959667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003175
- Ambient temperature (°C)
- 14.14
- Seeing (arcsec)
- 0.96
Observation
- ID
- 56802
- Category
- calibrator
- 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 | 51.5340 | 51.1620 | 39.3000 | 39.5000 |
| U1-U3 | 90.9710 | 90.1250 | 45.4000 | 45.7000 |
| U1-U4 | 104.5350 | 102.6330 | 76.8510 | 77.3960 |
| U2-U3 | 40.1240 | 39.6430 | 53.4000 | 53.7000 |
| U2-U4 | 71.0360 | 69.7100 | 103.1150 | 104.1630 |
| U3-U4 | 54.4930 | 53.9800 | 137.2780 | 138.6660 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60187.11239293 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.416556 |
| DEC | -29.00742 |
| 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 | 51.534 |
| HIERARCH ESO ISS PBL12 END | 51.162 |
| HIERARCH ESO ISS PBLA12 START | 39.3 |
| HIERARCH ESO ISS PBLA12 END | 39.5 |
| HIERARCH ESO ISS PBL13 START | 90.971 |
| HIERARCH ESO ISS PBL13 END | 90.125 |
| HIERARCH ESO ISS PBLA13 START | 45.4 |
| HIERARCH ESO ISS PBLA13 END | 45.7 |
| HIERARCH ESO ISS PBL14 START | 104.535 |
| HIERARCH ESO ISS PBL14 END | 102.633 |
| HIERARCH ESO ISS PBLA14 START | 76.851 |
| HIERARCH ESO ISS PBLA14 END | 77.396 |
| HIERARCH ESO ISS PBL23 START | 40.124 |
| HIERARCH ESO ISS PBL23 END | 39.643 |
| HIERARCH ESO ISS PBLA23 START | 53.4 |
| HIERARCH ESO ISS PBLA23 END | 53.7 |
| HIERARCH ESO ISS PBL24 START | 71.036 |
| HIERARCH ESO ISS PBL24 END | 69.71 |
| HIERARCH ESO ISS PBLA24 START | 103.115 |
| HIERARCH ESO ISS PBLA24 END | 104.163 |
| HIERARCH ESO ISS PBL34 START | 54.493 |
| HIERARCH ESO ISS PBL34 END | 53.98 |
| HIERARCH ESO ISS PBLA34 START | 137.278 |
| HIERARCH ESO ISS PBLA34 END | 138.666 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002961 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003389 |
| HIERARCH ESO ISS AMBI TEMP | 14.14 |
| HIERARCH ESO ISS AMBI FWHM START | 1.0 |
| HIERARCH ESO ISS AMBI FWHM END | 0.92 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |