Exposure
- ID
- GRAVI.2023-07-31T23:36:09.670_2
- Header ID
- GRAVI.2023-07-31T23:36:09.670
- Date updated
- 2023-07-31 23:50:34 UTC+0000
- Release date
- 2023-07-31 23:36:09 UTC+0000
- UTC Start
- 2023-07-31 23:36:09.670
- UTC End
- 2023-07-31 23:42:09.670
- MJD Start
- 60156.98344526
- MJD End
- 60156.98761192666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0033615
- Ambient temperature (°C)
- 18.21
- Seeing (arcsec)
- 0.855
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 | 56.3330 | 56.3530 | 9.0000 | 9.9000 |
| U1-U3 | 101.3690 | 101.4620 | 14.6000 | 15.5000 |
| U1-U4 | 121.7340 | 122.4700 | 40.5610 | 41.7420 |
| U2-U3 | 45.6260 | 45.7140 | 21.4000 | 22.5000 |
| U2-U4 | 79.3960 | 80.2830 | 62.3500 | 63.4620 |
| U3-U4 | 53.9600 | 54.7180 | 95.9920 | 96.6890 |
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 | 60156.98344526 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | R2 |
| RA | 266.416876 |
| DEC | -29.00718 |
| 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 | 56.333 |
| HIERARCH ESO ISS PBL12 END | 56.353 |
| HIERARCH ESO ISS PBLA12 START | 9.0 |
| HIERARCH ESO ISS PBLA12 END | 9.9 |
| HIERARCH ESO ISS PBL13 START | 101.369 |
| HIERARCH ESO ISS PBL13 END | 101.462 |
| HIERARCH ESO ISS PBLA13 START | 14.6 |
| HIERARCH ESO ISS PBLA13 END | 15.5 |
| HIERARCH ESO ISS PBL14 START | 121.734 |
| HIERARCH ESO ISS PBL14 END | 122.47 |
| HIERARCH ESO ISS PBLA14 START | 40.561 |
| HIERARCH ESO ISS PBLA14 END | 41.742 |
| HIERARCH ESO ISS PBL23 START | 45.626 |
| HIERARCH ESO ISS PBL23 END | 45.714 |
| HIERARCH ESO ISS PBLA23 START | 21.4 |
| HIERARCH ESO ISS PBLA23 END | 22.5 |
| HIERARCH ESO ISS PBL24 START | 79.396 |
| HIERARCH ESO ISS PBL24 END | 80.283 |
| HIERARCH ESO ISS PBLA24 START | 62.35 |
| HIERARCH ESO ISS PBLA24 END | 63.462 |
| HIERARCH ESO ISS PBL34 START | 53.96 |
| HIERARCH ESO ISS PBL34 END | 54.718 |
| HIERARCH ESO ISS PBLA34 START | 95.992 |
| HIERARCH ESO ISS PBLA34 END | 96.689 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003255 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003468 |
| HIERARCH ESO ISS AMBI TEMP | 18.21 |
| HIERARCH ESO ISS AMBI FWHM START | 0.91 |
| HIERARCH ESO ISS AMBI FWHM END | 0.8 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |