Exposure
- ID
- GRAVI.2022-05-20T09:09:21.254_2
- Header ID
- GRAVI.2022-05-20T09:09:21.254
- Date updated
- 2022-05-20 09:20:49 UTC+0000
- Release date
- 2023-05-20 09:20:49 UTC+0000
- UTC Start
- 2022-05-20 09:09:21.254
- UTC End
- 2022-05-20 09:14:41.254
- MJD Start
- 59719.381496
- MJD End
- 59719.3851997037
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.006792
- Ambient temperature (°C)
- 12.01
- Seeing (arcsec)
- 0.335
Observation
- ID
- 50947
- Category
- science
- 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 | 52.4150 | 52.1210 | 38.5000 | 38.7000 |
| U1-U3 | 92.9790 | 92.3070 | 44.7000 | 45.0000 |
| U1-U4 | 109.0820 | 107.5550 | 75.4500 | 75.9370 |
| U2-U3 | 41.2690 | 40.8860 | 52.6000 | 52.9000 |
| U2-U4 | 74.2460 | 73.1620 | 100.5820 | 101.4380 |
| U3-U4 | 55.7850 | 55.3410 | 133.9060 | 135.0480 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.22ZA.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 59719.381496 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416858 |
| DEC | -29.00723 |
| 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 | 52.415 |
| HIERARCH ESO ISS PBL12 END | 52.121 |
| HIERARCH ESO ISS PBLA12 START | 38.5 |
| HIERARCH ESO ISS PBLA12 END | 38.7 |
| HIERARCH ESO ISS PBL13 START | 92.979 |
| HIERARCH ESO ISS PBL13 END | 92.307 |
| HIERARCH ESO ISS PBLA13 START | 44.7 |
| HIERARCH ESO ISS PBLA13 END | 45.0 |
| HIERARCH ESO ISS PBL14 START | 109.082 |
| HIERARCH ESO ISS PBL14 END | 107.555 |
| HIERARCH ESO ISS PBLA14 START | 75.45 |
| HIERARCH ESO ISS PBLA14 END | 75.937 |
| HIERARCH ESO ISS PBL23 START | 41.269 |
| HIERARCH ESO ISS PBL23 END | 40.886 |
| HIERARCH ESO ISS PBLA23 START | 52.6 |
| HIERARCH ESO ISS PBLA23 END | 52.9 |
| HIERARCH ESO ISS PBL24 START | 74.246 |
| HIERARCH ESO ISS PBL24 END | 73.162 |
| HIERARCH ESO ISS PBLA24 START | 100.582 |
| HIERARCH ESO ISS PBLA24 END | 101.438 |
| HIERARCH ESO ISS PBL34 START | 55.785 |
| HIERARCH ESO ISS PBL34 END | 55.341 |
| HIERARCH ESO ISS PBLA34 START | 133.906 |
| HIERARCH ESO ISS PBLA34 END | 135.048 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006873 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.006711 |
| HIERARCH ESO ISS AMBI TEMP | 12.01 |
| HIERARCH ESO ISS AMBI FWHM START | 0.33 |
| HIERARCH ESO ISS AMBI FWHM END | 0.34 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |