Exposure
- ID
- GRAVI.2023-08-03T04:04:37.489_2
- Header ID
- GRAVI.2023-08-03T04:04:37.489
- Date updated
- 2023-08-03 04:20:29 UTC+0000
- Release date
- 2023-08-03 04:04:37 UTC+0000
- UTC Start
- 2023-08-03 04:04:37.489
- UTC End
- 2023-08-03 04:10:37.489
- MJD Start
- 60159.16987834
- MJD End
- 60159.174045006665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0053665
- Ambient temperature (°C)
- 18.84
- Seeing (arcsec)
- 0.625
Observation
- ID
- 56472
- Category
- calibrator
- Program ID
- 111.24H1.004
- 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/ BRANDNER/ ROUSSELET-PERRAUT/ PERRIN/ GARCIA/ ECKART/ DE ZEEUW/ WIDMANN/ PAUMARD/ HORROBIN/ VINCENT/ DRESCHER/ BOURDAROT/ CAO/ LUTZ/ STURM/ RIBEIRO
Target
- ID
- 41849
- Name
- IRS16C
- RA
- 266.4171083333333
- DEC
- -29.007645
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 | 52.9440 | 52.6330 | 37.9000 | 38.2000 |
| U1-U3 | 94.1920 | 93.4790 | 44.1000 | 44.5000 |
| U1-U4 | 111.8540 | 110.2230 | 74.5100 | 75.0720 |
| U2-U3 | 41.9630 | 41.5550 | 52.0000 | 52.4000 |
| U2-U4 | 76.2300 | 75.0600 | 98.9960 | 99.9340 |
| U3-U4 | 56.6180 | 56.1240 | 131.7930 | 133.0420 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | CALIB |
| HIERARCH ESO DPR TYPE | STD,DUAL |
| MJD-OBS | 60159.16987834 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.417034 |
| DEC | -29.00737 |
| 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 | 389.0 |
| HIERARCH ESO DET2 SEQ1 DIT | 30.0 |
| HIERARCH ESO DET2 NDIT | 12 |
| HIERARCH ESO ISS PBL12 START | 52.944 |
| HIERARCH ESO ISS PBL12 END | 52.633 |
| HIERARCH ESO ISS PBLA12 START | 37.9 |
| HIERARCH ESO ISS PBLA12 END | 38.2 |
| HIERARCH ESO ISS PBL13 START | 94.192 |
| HIERARCH ESO ISS PBL13 END | 93.479 |
| HIERARCH ESO ISS PBLA13 START | 44.1 |
| HIERARCH ESO ISS PBLA13 END | 44.5 |
| HIERARCH ESO ISS PBL14 START | 111.854 |
| HIERARCH ESO ISS PBL14 END | 110.223 |
| HIERARCH ESO ISS PBLA14 START | 74.51 |
| HIERARCH ESO ISS PBLA14 END | 75.072 |
| HIERARCH ESO ISS PBL23 START | 41.963 |
| HIERARCH ESO ISS PBL23 END | 41.555 |
| HIERARCH ESO ISS PBLA23 START | 52.0 |
| HIERARCH ESO ISS PBLA23 END | 52.4 |
| HIERARCH ESO ISS PBL24 START | 76.23 |
| HIERARCH ESO ISS PBL24 END | 75.06 |
| HIERARCH ESO ISS PBLA24 START | 98.996 |
| HIERARCH ESO ISS PBLA24 END | 99.934 |
| HIERARCH ESO ISS PBL34 START | 56.618 |
| HIERARCH ESO ISS PBL34 END | 56.124 |
| HIERARCH ESO ISS PBLA34 START | 131.793 |
| HIERARCH ESO ISS PBLA34 END | 133.042 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.005329 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005404 |
| HIERARCH ESO ISS AMBI TEMP | 18.84 |
| HIERARCH ESO ISS AMBI FWHM START | 0.62 |
| HIERARCH ESO ISS AMBI FWHM END | 0.63 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |