Exposure
- ID
- GRAVI.2022-05-20T05:56:20.769_2
- Header ID
- GRAVI.2022-05-20T05:56:20.769
- Date updated
- 2022-05-20 06:15:40 UTC+0000
- Release date
- 2023-05-20 06:15:40 UTC+0000
- UTC Start
- 2022-05-20 05:56:20.769
- UTC End
- 2022-05-20 06:01:40.769
- MJD Start
- 59719.2474626
- MJD End
- 59719.2511663037
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0082735
- Ambient temperature (°C)
- 12.9
- Seeing (arcsec)
- 0.44
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 | 56.5590 | 56.5540 | 21.4000 | 22.1000 |
| U1-U3 | 102.4250 | 102.4340 | 27.7000 | 28.4000 |
| U1-U4 | 129.6300 | 129.8300 | 55.3750 | 56.1280 |
| U2-U3 | 46.6090 | 46.6270 | 35.3000 | 36.0000 |
| U2-U4 | 88.5360 | 88.7840 | 76.2740 | 77.0050 |
| U3-U4 | 61.5160 | 61.7300 | 106.0960 | 106.7300 |
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 | 59719.2474626 |
| 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 | 56.559 |
| HIERARCH ESO ISS PBL12 END | 56.554 |
| HIERARCH ESO ISS PBLA12 START | 21.4 |
| HIERARCH ESO ISS PBLA12 END | 22.1 |
| HIERARCH ESO ISS PBL13 START | 102.425 |
| HIERARCH ESO ISS PBL13 END | 102.434 |
| HIERARCH ESO ISS PBLA13 START | 27.7 |
| HIERARCH ESO ISS PBLA13 END | 28.4 |
| HIERARCH ESO ISS PBL14 START | 129.63 |
| HIERARCH ESO ISS PBL14 END | 129.83 |
| HIERARCH ESO ISS PBLA14 START | 55.375 |
| HIERARCH ESO ISS PBLA14 END | 56.128 |
| HIERARCH ESO ISS PBL23 START | 46.609 |
| HIERARCH ESO ISS PBL23 END | 46.627 |
| HIERARCH ESO ISS PBLA23 START | 35.3 |
| HIERARCH ESO ISS PBLA23 END | 36.0 |
| HIERARCH ESO ISS PBL24 START | 88.536 |
| HIERARCH ESO ISS PBL24 END | 88.784 |
| HIERARCH ESO ISS PBLA24 START | 76.274 |
| HIERARCH ESO ISS PBLA24 END | 77.005 |
| HIERARCH ESO ISS PBL34 START | 61.516 |
| HIERARCH ESO ISS PBL34 END | 61.73 |
| HIERARCH ESO ISS PBLA34 START | 106.096 |
| HIERARCH ESO ISS PBLA34 END | 106.73 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007947 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.0086 |
| HIERARCH ESO ISS AMBI TEMP | 12.9 |
| HIERARCH ESO ISS AMBI FWHM START | 0.44 |
| HIERARCH ESO ISS AMBI FWHM END | 0.44 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |