Exposure
- ID
- GRAVI.2022-05-22T06:38:20.512_2
- Header ID
- GRAVI.2022-05-22T06:38:20.512
- Date updated
- 2022-05-22 06:51:24 UTC+0000
- Release date
- 2022-05-22 06:38:20 UTC+0000
- UTC Start
- 2022-05-22 06:38:20.512
- UTC End
- 2022-05-22 06:43:40.512
- MJD Start
- 59721.2766263
- MJD End
- 59721.2803300037
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0027215
- Ambient temperature (°C)
- 8.86
- Seeing (arcsec)
- 0.87
Observation
- ID
- 50945
- Category
- calibrator
- Program ID
- 109.22ZA.002
- 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/ ROUSSELET-PERRAUT/ BRANDNER/ GARCIA/ ECKART/ DE ZEEUW/ STADLER/ VON FELLENBERG/ WIDMANN/ PERRIN/ PAUMARD/ HORROBIN/ VINCENT/ HEIßEL/ DRESCHER/ BOURDAROT/ STRAUB/ CAO
Target
- ID
- 37996
- Name
- IRS16C
- RA
- 266.4171125
- DEC
- -29.0076471944444
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 | 56.3590 | 56.3080 | 27.1000 | 27.7000 |
| U1-U3 | 102.0770 | 101.9660 | 33.4000 | 34.0000 |
| U1-U4 | 129.9070 | 129.7130 | 61.5380 | 62.1830 |
| U2-U3 | 46.4870 | 46.4280 | 41.2000 | 41.8000 |
| U2-U4 | 89.3340 | 89.2250 | 82.4590 | 83.1400 |
| U3-U4 | 62.4710 | 62.4510 | 111.8790 | 112.5760 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.22ZA.002 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 59721.2766263 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.416894 |
| 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 | 342.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 32 |
| HIERARCH ESO ISS PBL12 START | 56.359 |
| HIERARCH ESO ISS PBL12 END | 56.308 |
| HIERARCH ESO ISS PBLA12 START | 27.1 |
| HIERARCH ESO ISS PBLA12 END | 27.7 |
| HIERARCH ESO ISS PBL13 START | 102.077 |
| HIERARCH ESO ISS PBL13 END | 101.966 |
| HIERARCH ESO ISS PBLA13 START | 33.4 |
| HIERARCH ESO ISS PBLA13 END | 34.0 |
| HIERARCH ESO ISS PBL14 START | 129.907 |
| HIERARCH ESO ISS PBL14 END | 129.713 |
| HIERARCH ESO ISS PBLA14 START | 61.538 |
| HIERARCH ESO ISS PBLA14 END | 62.183 |
| HIERARCH ESO ISS PBL23 START | 46.487 |
| HIERARCH ESO ISS PBL23 END | 46.428 |
| HIERARCH ESO ISS PBLA23 START | 41.2 |
| HIERARCH ESO ISS PBLA23 END | 41.8 |
| HIERARCH ESO ISS PBL24 START | 89.334 |
| HIERARCH ESO ISS PBL24 END | 89.225 |
| HIERARCH ESO ISS PBLA24 START | 82.459 |
| HIERARCH ESO ISS PBLA24 END | 83.14 |
| HIERARCH ESO ISS PBL34 START | 62.471 |
| HIERARCH ESO ISS PBL34 END | 62.451 |
| HIERARCH ESO ISS PBLA34 START | 111.879 |
| HIERARCH ESO ISS PBLA34 END | 112.576 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002879 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002564 |
| HIERARCH ESO ISS AMBI TEMP | 8.86 |
| HIERARCH ESO ISS AMBI FWHM START | 0.9 |
| HIERARCH ESO ISS AMBI FWHM END | 0.84 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |