Exposure
- ID
- GRAVI.2023-08-29T00:23:25.769_2
- Header ID
- GRAVI.2023-08-29T00:23:25.769
- Date updated
- 2023-08-29 00:40:16 UTC+0000
- Release date
- 2024-08-29 00:40:16 UTC+0000
- UTC Start
- 2023-08-29 00:23:25.769
- UTC End
- 2023-08-29 00:29:25.769
- MJD Start
- 60185.01627047
- MJD End
- 60185.02043713666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0030545
- Ambient temperature (°C)
- 13.76
- Seeing (arcsec)
- 0.75
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 | 56.2290 | 56.1520 | 28.4000 | 29.1000 |
| U1-U3 | 101.7900 | 101.6150 | 34.8000 | 35.5000 |
| U1-U4 | 129.3720 | 129.0120 | 63.0200 | 63.7340 |
| U2-U3 | 46.3310 | 46.2330 | 42.5000 | 43.2000 |
| U2-U4 | 89.0110 | 88.7690 | 84.0400 | 84.8180 |
| U3-U4 | 62.3860 | 62.2950 | 113.5170 | 114.3470 |
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 | 60185.01627047 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | S4 |
| RA | 266.417173 |
| DEC | -29.0071 |
| 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 | 56.229 |
| HIERARCH ESO ISS PBL12 END | 56.152 |
| HIERARCH ESO ISS PBLA12 START | 28.4 |
| HIERARCH ESO ISS PBLA12 END | 29.1 |
| HIERARCH ESO ISS PBL13 START | 101.79 |
| HIERARCH ESO ISS PBL13 END | 101.615 |
| HIERARCH ESO ISS PBLA13 START | 34.8 |
| HIERARCH ESO ISS PBLA13 END | 35.5 |
| HIERARCH ESO ISS PBL14 START | 129.372 |
| HIERARCH ESO ISS PBL14 END | 129.012 |
| HIERARCH ESO ISS PBLA14 START | 63.02 |
| HIERARCH ESO ISS PBLA14 END | 63.734 |
| HIERARCH ESO ISS PBL23 START | 46.331 |
| HIERARCH ESO ISS PBL23 END | 46.233 |
| HIERARCH ESO ISS PBLA23 START | 42.5 |
| HIERARCH ESO ISS PBLA23 END | 43.2 |
| HIERARCH ESO ISS PBL24 START | 89.011 |
| HIERARCH ESO ISS PBL24 END | 88.769 |
| HIERARCH ESO ISS PBLA24 START | 84.04 |
| HIERARCH ESO ISS PBLA24 END | 84.818 |
| HIERARCH ESO ISS PBL34 START | 62.386 |
| HIERARCH ESO ISS PBL34 END | 62.295 |
| HIERARCH ESO ISS PBLA34 START | 113.517 |
| HIERARCH ESO ISS PBLA34 END | 114.347 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.003393 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002716 |
| HIERARCH ESO ISS AMBI TEMP | 13.76 |
| HIERARCH ESO ISS AMBI FWHM START | 0.74 |
| HIERARCH ESO ISS AMBI FWHM END | 0.76 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1060 |
| HIERARCH ESO FT ROBJ DELTA | -290027.5220 |