Exposure
- ID
- GRAVI.2023-07-31T04:40:29.630_2
- Header ID
- GRAVI.2023-07-31T04:40:29.630
- Date updated
- 2023-07-31 04:55:24 UTC+0000
- Release date
- 2023-07-31 04:40:29 UTC+0000
- UTC Start
- 2023-07-31 04:40:29.630
- UTC End
- 2023-07-31 04:46:29.630
- MJD Start
- 60156.19478738
- MJD End
- 60156.19895404667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.005136
- Ambient temperature (°C)
- 18.43
- Seeing (arcsec)
- 0.76
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 | 51.7150 | 51.3480 | 39.1000 | 39.4000 |
| U1-U3 | 91.3820 | 90.5490 | 45.3000 | 45.6000 |
| U1-U4 | 105.4620 | 103.5850 | 76.5770 | 77.1260 |
| U2-U3 | 40.3580 | 39.8840 | 53.3000 | 53.6000 |
| U2-U4 | 71.6870 | 70.3730 | 102.6030 | 103.6390 |
| U3-U4 | 54.7490 | 54.2350 | 136.5980 | 137.9720 |
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 | 60156.19478738 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.417098 |
| DEC | -29.00725 |
| 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 | 51.715 |
| HIERARCH ESO ISS PBL12 END | 51.348 |
| HIERARCH ESO ISS PBLA12 START | 39.1 |
| HIERARCH ESO ISS PBLA12 END | 39.4 |
| HIERARCH ESO ISS PBL13 START | 91.382 |
| HIERARCH ESO ISS PBL13 END | 90.549 |
| HIERARCH ESO ISS PBLA13 START | 45.3 |
| HIERARCH ESO ISS PBLA13 END | 45.6 |
| HIERARCH ESO ISS PBL14 START | 105.462 |
| HIERARCH ESO ISS PBL14 END | 103.585 |
| HIERARCH ESO ISS PBLA14 START | 76.577 |
| HIERARCH ESO ISS PBLA14 END | 77.126 |
| HIERARCH ESO ISS PBL23 START | 40.358 |
| HIERARCH ESO ISS PBL23 END | 39.884 |
| HIERARCH ESO ISS PBLA23 START | 53.3 |
| HIERARCH ESO ISS PBLA23 END | 53.6 |
| HIERARCH ESO ISS PBL24 START | 71.687 |
| HIERARCH ESO ISS PBL24 END | 70.373 |
| HIERARCH ESO ISS PBLA24 START | 102.603 |
| HIERARCH ESO ISS PBLA24 END | 103.639 |
| HIERARCH ESO ISS PBL34 START | 54.749 |
| HIERARCH ESO ISS PBL34 END | 54.235 |
| HIERARCH ESO ISS PBLA34 START | 136.598 |
| HIERARCH ESO ISS PBLA34 END | 137.972 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004281 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005991 |
| HIERARCH ESO ISS AMBI TEMP | 18.43 |
| HIERARCH ESO ISS AMBI FWHM START | 0.87 |
| HIERARCH ESO ISS AMBI FWHM END | 0.65 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |