Exposure
- ID
- GRAVI.2023-08-03T04:30:22.554_2
- Header ID
- GRAVI.2023-08-03T04:30:22.554
- Date updated
- 2023-08-03 04:45:23 UTC+0000
- Release date
- 2024-08-03 04:45:22 UTC+0000
- UTC Start
- 2023-08-03 04:30:22.554
- UTC End
- 2023-08-03 04:36:22.554
- MJD Start
- 60159.18776104
- MJD End
- 60159.19192770666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.007795
- Ambient temperature (°C)
- 18.66
- Seeing (arcsec)
- 0.585
Observation
- ID
- 56474
- Category
- science
- 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 | 51.6210 | 51.2520 | 39.2000 | 39.5000 |
| U1-U3 | 91.1690 | 90.3310 | 45.4000 | 45.6000 |
| U1-U4 | 104.9810 | 103.0950 | 76.7180 | 77.2650 |
| U2-U3 | 40.2370 | 39.7600 | 53.3000 | 53.6000 |
| U2-U4 | 71.3490 | 70.0320 | 102.8670 | 103.9070 |
| U3-U4 | 54.6160 | 54.1030 | 136.9500 | 138.3280 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60159.18776104 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| 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 | 51.621 |
| HIERARCH ESO ISS PBL12 END | 51.252 |
| HIERARCH ESO ISS PBLA12 START | 39.2 |
| HIERARCH ESO ISS PBLA12 END | 39.5 |
| HIERARCH ESO ISS PBL13 START | 91.169 |
| HIERARCH ESO ISS PBL13 END | 90.331 |
| HIERARCH ESO ISS PBLA13 START | 45.4 |
| HIERARCH ESO ISS PBLA13 END | 45.6 |
| HIERARCH ESO ISS PBL14 START | 104.981 |
| HIERARCH ESO ISS PBL14 END | 103.095 |
| HIERARCH ESO ISS PBLA14 START | 76.718 |
| HIERARCH ESO ISS PBLA14 END | 77.265 |
| HIERARCH ESO ISS PBL23 START | 40.237 |
| HIERARCH ESO ISS PBL23 END | 39.76 |
| HIERARCH ESO ISS PBLA23 START | 53.3 |
| HIERARCH ESO ISS PBLA23 END | 53.6 |
| HIERARCH ESO ISS PBL24 START | 71.349 |
| HIERARCH ESO ISS PBL24 END | 70.032 |
| HIERARCH ESO ISS PBLA24 START | 102.867 |
| HIERARCH ESO ISS PBLA24 END | 103.907 |
| HIERARCH ESO ISS PBL34 START | 54.616 |
| HIERARCH ESO ISS PBL34 END | 54.103 |
| HIERARCH ESO ISS PBLA34 START | 136.95 |
| HIERARCH ESO ISS PBLA34 END | 138.328 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008575 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.007015 |
| HIERARCH ESO ISS AMBI TEMP | 18.66 |
| HIERARCH ESO ISS AMBI FWHM START | 0.59 |
| HIERARCH ESO ISS AMBI FWHM END | 0.58 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |