Exposure
- ID
- GRAVI.2022-05-20T10:06:30.399_2
- Header ID
- GRAVI.2022-05-20T10:06:30.399
- Date updated
- 2022-05-20 10:15:58 UTC+0000
- Release date
- 2023-05-20 10:15:58 UTC+0000
- UTC Start
- 2022-05-20 10:06:30.399
- UTC End
- 2022-05-20 10:06:50.399
- MJD Start
- 59719.42118517
- MJD End
- 59719.4214166515
- Exposure time (s)
- 20.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007941
- Ambient temperature (°C)
- 12.02
- Seeing (arcsec)
- 0.445
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 | 48.9450 | 48.9100 | 40.7000 | 40.7000 |
| U1-U3 | 85.1200 | 85.0420 | 46.7000 | 46.8000 |
| U1-U4 | 91.5190 | 91.3470 | 80.2710 | 80.3120 |
| U2-U3 | 36.8110 | 36.7670 | 54.8000 | 54.8000 |
| U2-U4 | 62.1760 | 62.0630 | 110.3650 | 110.4630 |
| U3-U4 | 51.3100 | 51.2730 | 146.6390 | 146.7620 |
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 | 59719.42118517 |
| 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 | 34.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 10.0 |
| HIERARCH ESO DET2 NDIT | 2 |
| HIERARCH ESO ISS PBL12 START | 48.945 |
| HIERARCH ESO ISS PBL12 END | 48.91 |
| HIERARCH ESO ISS PBLA12 START | 40.7 |
| HIERARCH ESO ISS PBLA12 END | 40.7 |
| HIERARCH ESO ISS PBL13 START | 85.12 |
| HIERARCH ESO ISS PBL13 END | 85.042 |
| HIERARCH ESO ISS PBLA13 START | 46.7 |
| HIERARCH ESO ISS PBLA13 END | 46.8 |
| HIERARCH ESO ISS PBL14 START | 91.519 |
| HIERARCH ESO ISS PBL14 END | 91.347 |
| HIERARCH ESO ISS PBLA14 START | 80.271 |
| HIERARCH ESO ISS PBLA14 END | 80.312 |
| HIERARCH ESO ISS PBL23 START | 36.811 |
| HIERARCH ESO ISS PBL23 END | 36.767 |
| HIERARCH ESO ISS PBLA23 START | 54.8 |
| HIERARCH ESO ISS PBLA23 END | 54.8 |
| HIERARCH ESO ISS PBL24 START | 62.176 |
| HIERARCH ESO ISS PBL24 END | 62.063 |
| HIERARCH ESO ISS PBLA24 START | 110.365 |
| HIERARCH ESO ISS PBLA24 END | 110.463 |
| HIERARCH ESO ISS PBL34 START | 51.31 |
| HIERARCH ESO ISS PBL34 END | 51.273 |
| HIERARCH ESO ISS PBLA34 START | 146.639 |
| HIERARCH ESO ISS PBLA34 END | 146.762 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008019 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007863 |
| HIERARCH ESO ISS AMBI TEMP | 12.02 |
| HIERARCH ESO ISS AMBI FWHM START | 0.46 |
| HIERARCH ESO ISS AMBI FWHM END | 0.43 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |