Exposure
- ID
- GRAVI.2023-08-03T00:24:39.931_2
- Header ID
- GRAVI.2023-08-03T00:24:39.931
- Date updated
- 2023-08-03 00:40:25 UTC+0000
- Release date
- 2024-08-03 00:40:24 UTC+0000
- UTC Start
- 2023-08-03 00:24:39.931
- UTC End
- 2023-08-03 00:30:39.931
- MJD Start
- 60159.01712883
- MJD End
- 60159.02129549666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0058530000000000006
- Ambient temperature (°C)
- 18.87
- Seeing (arcsec)
- 0.61
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 | 56.5110 | 56.5270 | 16.7000 | 17.5000 |
| U1-U3 | 102.1450 | 102.2160 | 22.7000 | 23.6000 |
| U1-U4 | 127.3670 | 127.8630 | 50.0030 | 50.9770 |
| U2-U3 | 46.3330 | 46.3970 | 30.1000 | 31.0000 |
| U2-U4 | 85.9450 | 86.5040 | 71.1750 | 72.0890 |
| U3-U4 | 59.3930 | 59.8460 | 101.9980 | 102.6920 |
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 | 60159.01712883 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.41687 |
| DEC | -29.00725 |
| 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 | 56.511 |
| HIERARCH ESO ISS PBL12 END | 56.527 |
| HIERARCH ESO ISS PBLA12 START | 16.7 |
| HIERARCH ESO ISS PBLA12 END | 17.5 |
| HIERARCH ESO ISS PBL13 START | 102.145 |
| HIERARCH ESO ISS PBL13 END | 102.216 |
| HIERARCH ESO ISS PBLA13 START | 22.7 |
| HIERARCH ESO ISS PBLA13 END | 23.6 |
| HIERARCH ESO ISS PBL14 START | 127.367 |
| HIERARCH ESO ISS PBL14 END | 127.863 |
| HIERARCH ESO ISS PBLA14 START | 50.003 |
| HIERARCH ESO ISS PBLA14 END | 50.977 |
| HIERARCH ESO ISS PBL23 START | 46.333 |
| HIERARCH ESO ISS PBL23 END | 46.397 |
| HIERARCH ESO ISS PBLA23 START | 30.1 |
| HIERARCH ESO ISS PBLA23 END | 31.0 |
| HIERARCH ESO ISS PBL24 START | 85.945 |
| HIERARCH ESO ISS PBL24 END | 86.504 |
| HIERARCH ESO ISS PBLA24 START | 71.175 |
| HIERARCH ESO ISS PBLA24 END | 72.089 |
| HIERARCH ESO ISS PBL34 START | 59.393 |
| HIERARCH ESO ISS PBL34 END | 59.846 |
| HIERARCH ESO ISS PBLA34 START | 101.998 |
| HIERARCH ESO ISS PBLA34 END | 102.692 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.006478 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.005228 |
| HIERARCH ESO ISS AMBI TEMP | 18.87 |
| HIERARCH ESO ISS AMBI FWHM START | 0.61 |
| HIERARCH ESO ISS AMBI FWHM END | 0.61 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |