Exposure
- ID
- GRAVI.2022-06-17T01:45:20.890_2
- Header ID
- GRAVI.2022-06-17T01:45:20.890
- Date updated
- 2022-06-17 02:00:53 UTC+0000
- Release date
- 2022-06-17 01:45:20 UTC+0000
- UTC Start
- 2022-06-17 01:45:20.890
- UTC End
- 2022-06-17 01:50:40.890
- MJD Start
- 59747.07315845
- MJD End
- 59747.0768621537
- Exposure time (s)
- 320.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003443
- Ambient temperature (°C)
- 4.06
- Seeing (arcsec)
- 1.1
Observation
- ID
- 51257
- Category
- calibrator
- Program ID
- 109.22ZA.003
- 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 | 56.2350 | 56.2410 | 2.3000 | 3.1000 |
| U1-U3 | 100.8120 | 100.8640 | 7.2000 | 8.1000 |
| U1-U4 | 116.2210 | 116.8870 | 31.1920 | 32.4130 |
| U2-U3 | 45.0420 | 45.1050 | 13.4000 | 14.4000 |
| U2-U4 | 72.2790 | 73.1950 | 53.2660 | 54.4860 |
| U3-U4 | 47.5170 | 48.3900 | 90.7200 | 91.3940 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 109.22ZA.003 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 59747.07315845 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.416825 |
| DEC | -29.00697 |
| 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 | 56.235 |
| HIERARCH ESO ISS PBL12 END | 56.241 |
| HIERARCH ESO ISS PBLA12 START | 2.3 |
| HIERARCH ESO ISS PBLA12 END | 3.1 |
| HIERARCH ESO ISS PBL13 START | 100.812 |
| HIERARCH ESO ISS PBL13 END | 100.864 |
| HIERARCH ESO ISS PBLA13 START | 7.2 |
| HIERARCH ESO ISS PBLA13 END | 8.1 |
| HIERARCH ESO ISS PBL14 START | 116.221 |
| HIERARCH ESO ISS PBL14 END | 116.887 |
| HIERARCH ESO ISS PBLA14 START | 31.192 |
| HIERARCH ESO ISS PBLA14 END | 32.413 |
| HIERARCH ESO ISS PBL23 START | 45.042 |
| HIERARCH ESO ISS PBL23 END | 45.105 |
| HIERARCH ESO ISS PBLA23 START | 13.4 |
| HIERARCH ESO ISS PBLA23 END | 14.4 |
| HIERARCH ESO ISS PBL24 START | 72.279 |
| HIERARCH ESO ISS PBL24 END | 73.195 |
| HIERARCH ESO ISS PBLA24 START | 53.266 |
| HIERARCH ESO ISS PBLA24 END | 54.486 |
| HIERARCH ESO ISS PBL34 START | 47.517 |
| HIERARCH ESO ISS PBL34 END | 48.39 |
| HIERARCH ESO ISS PBLA34 START | 90.72 |
| HIERARCH ESO ISS PBLA34 END | 91.394 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003241 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003645 |
| HIERARCH ESO ISS AMBI TEMP | 4.06 |
| HIERARCH ESO ISS AMBI FWHM START | 1.03 |
| HIERARCH ESO ISS AMBI FWHM END | 1.17 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1070 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5299 |