Exposure
- ID
- GRAVI.2023-08-31T00:44:02.451_2
- Header ID
- GRAVI.2023-08-31T00:44:02.451
- Date updated
- 2023-08-31 01:00:27 UTC+0000
- Release date
- 2024-08-31 01:00:27 UTC+0000
- UTC Start
- 2023-08-31 00:44:02.451
- UTC End
- 2023-08-31 00:50:02.451
- MJD Start
- 60187.03058392
- MJD End
- 60187.03475058667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0041915
- Ambient temperature (°C)
- 13.8
- Seeing (arcsec)
- 0.865
Observation
- ID
- 56795
- Category
- science
- Program ID
- 111.24H1.005
- 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 | 55.8160 | 55.6940 | 31.2000 | 31.7000 |
| U1-U3 | 100.8420 | 100.5580 | 37.5000 | 38.1000 |
| U1-U4 | 127.3000 | 126.6470 | 66.0570 | 66.7140 |
| U2-U3 | 45.7930 | 45.6300 | 45.3000 | 45.9000 |
| U2-U4 | 87.5500 | 87.0730 | 87.4470 | 88.2210 |
| U3-U4 | 61.7630 | 61.5430 | 117.2660 | 118.1590 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 111.24H1.005 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60187.03058392 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41685 |
| DEC | -29.00732 |
| 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 | 55.816 |
| HIERARCH ESO ISS PBL12 END | 55.694 |
| HIERARCH ESO ISS PBLA12 START | 31.2 |
| HIERARCH ESO ISS PBLA12 END | 31.7 |
| HIERARCH ESO ISS PBL13 START | 100.842 |
| HIERARCH ESO ISS PBL13 END | 100.558 |
| HIERARCH ESO ISS PBLA13 START | 37.5 |
| HIERARCH ESO ISS PBLA13 END | 38.1 |
| HIERARCH ESO ISS PBL14 START | 127.3 |
| HIERARCH ESO ISS PBL14 END | 126.647 |
| HIERARCH ESO ISS PBLA14 START | 66.057 |
| HIERARCH ESO ISS PBLA14 END | 66.714 |
| HIERARCH ESO ISS PBL23 START | 45.793 |
| HIERARCH ESO ISS PBL23 END | 45.63 |
| HIERARCH ESO ISS PBLA23 START | 45.3 |
| HIERARCH ESO ISS PBLA23 END | 45.9 |
| HIERARCH ESO ISS PBL24 START | 87.55 |
| HIERARCH ESO ISS PBL24 END | 87.073 |
| HIERARCH ESO ISS PBLA24 START | 87.447 |
| HIERARCH ESO ISS PBLA24 END | 88.221 |
| HIERARCH ESO ISS PBL34 START | 61.763 |
| HIERARCH ESO ISS PBL34 END | 61.543 |
| HIERARCH ESO ISS PBLA34 START | 117.266 |
| HIERARCH ESO ISS PBLA34 END | 118.159 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003672 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004711 |
| HIERARCH ESO ISS AMBI TEMP | 13.8 |
| HIERARCH ESO ISS AMBI FWHM START | 0.84 |
| HIERARCH ESO ISS AMBI FWHM END | 0.89 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |