Exposure
- ID
- GRAVI.2022-05-23T04:38:39.375_2
- Header ID
- GRAVI.2022-05-23T04:38:39.375
- Date updated
- 2022-05-23 04:55:41 UTC+0000
- Release date
- 2023-05-23 04:55:41 UTC+0000
- UTC Start
- 2022-05-23 04:38:39.375
- UTC End
- 2022-05-23 04:43:59.375
- MJD Start
- 59722.19351129
- MJD End
- 59722.1972149937
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0071565
- Ambient temperature (°C)
- 11.22
- Seeing (arcsec)
- 0.49
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 | 56.4250 | 56.4440 | 12.9000 | 13.7000 |
| U1-U3 | 101.7770 | 101.8580 | 18.8000 | 19.6000 |
| U1-U4 | 124.8110 | 125.3800 | 45.5320 | 46.4820 |
| U2-U3 | 46.0030 | 46.0760 | 25.9000 | 26.8000 |
| U2-U4 | 83.0330 | 83.6890 | 67.0050 | 67.8890 |
| U3-U4 | 57.0190 | 57.5580 | 99.0160 | 99.6240 |
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 | 59722.19351129 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S2 |
| RA | 266.416757 |
| 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 | 56.425 |
| HIERARCH ESO ISS PBL12 END | 56.444 |
| HIERARCH ESO ISS PBLA12 START | 12.9 |
| HIERARCH ESO ISS PBLA12 END | 13.7 |
| HIERARCH ESO ISS PBL13 START | 101.777 |
| HIERARCH ESO ISS PBL13 END | 101.858 |
| HIERARCH ESO ISS PBLA13 START | 18.8 |
| HIERARCH ESO ISS PBLA13 END | 19.6 |
| HIERARCH ESO ISS PBL14 START | 124.811 |
| HIERARCH ESO ISS PBL14 END | 125.38 |
| HIERARCH ESO ISS PBLA14 START | 45.532 |
| HIERARCH ESO ISS PBLA14 END | 46.482 |
| HIERARCH ESO ISS PBL23 START | 46.003 |
| HIERARCH ESO ISS PBL23 END | 46.076 |
| HIERARCH ESO ISS PBLA23 START | 25.9 |
| HIERARCH ESO ISS PBLA23 END | 26.8 |
| HIERARCH ESO ISS PBL24 START | 83.033 |
| HIERARCH ESO ISS PBL24 END | 83.689 |
| HIERARCH ESO ISS PBLA24 START | 67.005 |
| HIERARCH ESO ISS PBLA24 END | 67.889 |
| HIERARCH ESO ISS PBL34 START | 57.019 |
| HIERARCH ESO ISS PBL34 END | 57.558 |
| HIERARCH ESO ISS PBLA34 START | 99.016 |
| HIERARCH ESO ISS PBLA34 END | 99.624 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.007088 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007225 |
| HIERARCH ESO ISS AMBI TEMP | 11.22 |
| HIERARCH ESO ISS AMBI FWHM START | 0.48 |
| HIERARCH ESO ISS AMBI FWHM END | 0.5 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |