Exposure
- ID
- GRAVI.2022-05-20T08:56:33.222_2
- Header ID
- GRAVI.2022-05-20T08:56:33.222
- Date updated
- 2022-05-20 09:15:53 UTC+0000
- Release date
- 2023-05-20 09:15:53 UTC+0000
- UTC Start
- 2022-05-20 08:56:33.222
- UTC End
- 2022-05-20 09:01:53.222
- MJD Start
- 59719.37260674
- MJD End
- 59719.3763104437
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0083615
- Ambient temperature (°C)
- 12.09
- Seeing (arcsec)
- 0.31
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 | 53.0330 | 52.7660 | 37.8000 | 38.1000 |
| U1-U3 | 94.3960 | 93.7840 | 44.0000 | 44.3000 |
| U1-U4 | 112.3200 | 110.9170 | 74.3450 | 74.8370 |
| U2-U3 | 42.0800 | 41.7290 | 51.9000 | 52.2000 |
| U2-U4 | 76.5650 | 75.5570 | 98.7260 | 99.5380 |
| U3-U4 | 56.7610 | 56.3320 | 131.4340 | 132.5140 |
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 | 59719.37260674 |
| 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 | 53.033 |
| HIERARCH ESO ISS PBL12 END | 52.766 |
| HIERARCH ESO ISS PBLA12 START | 37.8 |
| HIERARCH ESO ISS PBLA12 END | 38.1 |
| HIERARCH ESO ISS PBL13 START | 94.396 |
| HIERARCH ESO ISS PBL13 END | 93.784 |
| HIERARCH ESO ISS PBLA13 START | 44.0 |
| HIERARCH ESO ISS PBLA13 END | 44.3 |
| HIERARCH ESO ISS PBL14 START | 112.32 |
| HIERARCH ESO ISS PBL14 END | 110.917 |
| HIERARCH ESO ISS PBLA14 START | 74.345 |
| HIERARCH ESO ISS PBLA14 END | 74.837 |
| HIERARCH ESO ISS PBL23 START | 42.08 |
| HIERARCH ESO ISS PBL23 END | 41.729 |
| HIERARCH ESO ISS PBLA23 START | 51.9 |
| HIERARCH ESO ISS PBLA23 END | 52.2 |
| HIERARCH ESO ISS PBL24 START | 76.565 |
| HIERARCH ESO ISS PBL24 END | 75.557 |
| HIERARCH ESO ISS PBLA24 START | 98.726 |
| HIERARCH ESO ISS PBLA24 END | 99.538 |
| HIERARCH ESO ISS PBL34 START | 56.761 |
| HIERARCH ESO ISS PBL34 END | 56.332 |
| HIERARCH ESO ISS PBLA34 START | 131.434 |
| HIERARCH ESO ISS PBLA34 END | 132.514 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008039 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.008684 |
| HIERARCH ESO ISS AMBI TEMP | 12.09 |
| HIERARCH ESO ISS AMBI FWHM START | 0.28 |
| 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 |