Exposure
- ID
- GRAVI.2023-07-31T02:07:11.241_2
- Header ID
- GRAVI.2023-07-31T02:07:11.241
- Date updated
- 2023-07-31 02:20:26 UTC+0000
- Release date
- 2023-07-31 02:07:11 UTC+0000
- UTC Start
- 2023-07-31 02:07:11.241
- UTC End
- 2023-07-31 02:13:11.241
- MJD Start
- 60156.08832455
- MJD End
- 60156.09249121667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.004760500000000001
- Ambient temperature (°C)
- 18.04
- Seeing (arcsec)
- 0.915
Observation
- ID
- 56472
- Category
- calibrator
- 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 | 56.3320 | 56.2700 | 27.4000 | 28.1000 |
| U1-U3 | 102.0190 | 101.8800 | 33.8000 | 34.4000 |
| U1-U4 | 129.8080 | 129.5510 | 61.8880 | 62.6170 |
| U2-U3 | 46.4560 | 46.3810 | 41.5000 | 42.2000 |
| U2-U4 | 89.2800 | 89.1260 | 82.8270 | 83.6040 |
| U3-U4 | 62.4630 | 62.4240 | 112.2540 | 113.0580 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60156.08832455 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| 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 | 56.332 |
| HIERARCH ESO ISS PBL12 END | 56.27 |
| HIERARCH ESO ISS PBLA12 START | 27.4 |
| HIERARCH ESO ISS PBLA12 END | 28.1 |
| HIERARCH ESO ISS PBL13 START | 102.019 |
| HIERARCH ESO ISS PBL13 END | 101.88 |
| HIERARCH ESO ISS PBLA13 START | 33.8 |
| HIERARCH ESO ISS PBLA13 END | 34.4 |
| HIERARCH ESO ISS PBL14 START | 129.808 |
| HIERARCH ESO ISS PBL14 END | 129.551 |
| HIERARCH ESO ISS PBLA14 START | 61.888 |
| HIERARCH ESO ISS PBLA14 END | 62.617 |
| HIERARCH ESO ISS PBL23 START | 46.456 |
| HIERARCH ESO ISS PBL23 END | 46.381 |
| HIERARCH ESO ISS PBLA23 START | 41.5 |
| HIERARCH ESO ISS PBLA23 END | 42.2 |
| HIERARCH ESO ISS PBL24 START | 89.28 |
| HIERARCH ESO ISS PBL24 END | 89.126 |
| HIERARCH ESO ISS PBLA24 START | 82.827 |
| HIERARCH ESO ISS PBLA24 END | 83.604 |
| HIERARCH ESO ISS PBL34 START | 62.463 |
| HIERARCH ESO ISS PBL34 END | 62.424 |
| HIERARCH ESO ISS PBLA34 START | 112.254 |
| HIERARCH ESO ISS PBLA34 END | 113.058 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004852 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004669 |
| HIERARCH ESO ISS AMBI TEMP | 18.04 |
| HIERARCH ESO ISS AMBI FWHM START | 1.02 |
| HIERARCH ESO ISS AMBI FWHM END | 0.81 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |