Exposure
- ID
- GRAVI.2025-08-07T23:35:41.250_2
- Header ID
- GRAVI.2025-08-07T23:35:41.250
- Date updated
- 2025-08-07 23:50:36 UTC+0000
- Release date
- 2026-08-07 23:50:35 UTC+0000
- UTC Start
- 2025-08-07 23:35:41.250
- UTC End
- 2025-08-07 23:41:41.250
- MJD Start
- 60894.98311632
- MJD End
- 60894.987282986665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.00476
- Ambient temperature (°C)
- 13.59
- Seeing (arcsec)
- 0.605
Observation
- ID
- 69325
- Category
- science
- Program ID
- 115.27WT.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 / MANG / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / GARCIA / PAUMARD / BOURDAROT / STURM / LUTZ / LE BOUQUIN / CAO / KREIDBERG / HOENIG / FOSCHI / PERRIN / CARDOSO / AIMAR / URSO / ABD EL DAYEM / ROUSSELET-PER
Target
- ID
- 51518
- Name
- IRS16C
- RA
- 266.417075
- DEC
- -29.00768111111111
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 | 56.4280 | 56.4490 | 13.0000 | 13.9000 |
| U1-U3 | 101.7870 | 101.8780 | 18.9000 | 19.8000 |
| U1-U4 | 124.8780 | 125.5160 | 45.6410 | 46.7080 |
| U2-U3 | 46.0120 | 46.0940 | 26.0000 | 27.0000 |
| U2-U4 | 83.1100 | 83.8440 | 67.1050 | 68.0990 |
| U3-U4 | 57.0810 | 57.6840 | 99.0840 | 99.7700 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60894.98311632 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416185 |
| DEC | -29.007 |
| 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 | 56.428 |
| HIERARCH ESO ISS PBL12 END | 56.449 |
| HIERARCH ESO ISS PBLA12 START | 13.0 |
| HIERARCH ESO ISS PBLA12 END | 13.9 |
| HIERARCH ESO ISS PBL13 START | 101.787 |
| HIERARCH ESO ISS PBL13 END | 101.878 |
| HIERARCH ESO ISS PBLA13 START | 18.9 |
| HIERARCH ESO ISS PBLA13 END | 19.8 |
| HIERARCH ESO ISS PBL14 START | 124.878 |
| HIERARCH ESO ISS PBL14 END | 125.516 |
| HIERARCH ESO ISS PBLA14 START | 45.641 |
| HIERARCH ESO ISS PBLA14 END | 46.708 |
| HIERARCH ESO ISS PBL23 START | 46.012 |
| HIERARCH ESO ISS PBL23 END | 46.094 |
| HIERARCH ESO ISS PBLA23 START | 26.0 |
| HIERARCH ESO ISS PBLA23 END | 27.0 |
| HIERARCH ESO ISS PBL24 START | 83.11 |
| HIERARCH ESO ISS PBL24 END | 83.844 |
| HIERARCH ESO ISS PBLA24 START | 67.105 |
| HIERARCH ESO ISS PBLA24 END | 68.099 |
| HIERARCH ESO ISS PBL34 START | 57.081 |
| HIERARCH ESO ISS PBL34 END | 57.684 |
| HIERARCH ESO ISS PBLA34 START | 99.084 |
| HIERARCH ESO ISS PBLA34 END | 99.77 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004906 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.004614 |
| HIERARCH ESO ISS AMBI TEMP | 13.59 |
| HIERARCH ESO ISS AMBI FWHM START | 0.57 |
| HIERARCH ESO ISS AMBI FWHM END | 0.64 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |