Exposure
- ID
- GRAVI.2023-08-01T00:07:06.749_2
- Header ID
- GRAVI.2023-08-01T00:07:06.749
- Date updated
- 2023-08-01 00:20:26 UTC+0000
- Release date
- 2024-08-01 00:20:26 UTC+0000
- UTC Start
- 2023-08-01 00:07:06.749
- UTC End
- 2023-08-01 00:13:06.749
- MJD Start
- 60157.00493922
- MJD End
- 60157.00910588667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0029605
- Ambient temperature (°C)
- 18.29
- Seeing (arcsec)
- 1.21
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 | 56.4340 | 56.4550 | 13.3000 | 14.2000 |
| U1-U3 | 101.8150 | 101.9050 | 19.2000 | 20.1000 |
| U1-U4 | 125.0750 | 125.7080 | 45.9710 | 47.0360 |
| U2-U3 | 46.0370 | 46.1180 | 26.3000 | 27.3000 |
| U2-U4 | 83.3380 | 84.0630 | 67.4130 | 68.4050 |
| U3-U4 | 57.2690 | 57.8640 | 99.2950 | 99.9850 |
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 | 60157.00493922 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.416855 |
| DEC | -29.00712 |
| 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 | 56.434 |
| HIERARCH ESO ISS PBL12 END | 56.455 |
| HIERARCH ESO ISS PBLA12 START | 13.3 |
| HIERARCH ESO ISS PBLA12 END | 14.2 |
| HIERARCH ESO ISS PBL13 START | 101.815 |
| HIERARCH ESO ISS PBL13 END | 101.905 |
| HIERARCH ESO ISS PBLA13 START | 19.2 |
| HIERARCH ESO ISS PBLA13 END | 20.1 |
| HIERARCH ESO ISS PBL14 START | 125.075 |
| HIERARCH ESO ISS PBL14 END | 125.708 |
| HIERARCH ESO ISS PBLA14 START | 45.971 |
| HIERARCH ESO ISS PBLA14 END | 47.036 |
| HIERARCH ESO ISS PBL23 START | 46.037 |
| HIERARCH ESO ISS PBL23 END | 46.118 |
| HIERARCH ESO ISS PBLA23 START | 26.3 |
| HIERARCH ESO ISS PBLA23 END | 27.3 |
| HIERARCH ESO ISS PBL24 START | 83.338 |
| HIERARCH ESO ISS PBL24 END | 84.063 |
| HIERARCH ESO ISS PBLA24 START | 67.413 |
| HIERARCH ESO ISS PBLA24 END | 68.405 |
| HIERARCH ESO ISS PBL34 START | 57.269 |
| HIERARCH ESO ISS PBL34 END | 57.864 |
| HIERARCH ESO ISS PBLA34 START | 99.295 |
| HIERARCH ESO ISS PBLA34 END | 99.985 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002999 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002922 |
| HIERARCH ESO ISS AMBI TEMP | 18.29 |
| HIERARCH ESO ISS AMBI FWHM START | 1.31 |
| HIERARCH ESO ISS AMBI FWHM END | 1.11 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |