Exposure
- ID
- GRAVI.2025-08-08T01:32:59.549_2
- Header ID
- GRAVI.2025-08-08T01:32:59.549
- Date updated
- 2025-08-08 01:50:46 UTC+0000
- Release date
- 2026-08-08 01:50:46 UTC+0000
- UTC Start
- 2025-08-08 01:32:59.549
- UTC End
- 2025-08-08 01:38:59.549
- MJD Start
- 60895.06457811
- MJD End
- 60895.06874477667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003077
- Ambient temperature (°C)
- 12.96
- Seeing (arcsec)
- 0.795
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 | 56.3390 | 56.2780 | 27.3000 | 28.0000 |
| U1-U3 | 102.0350 | 101.9000 | 33.7000 | 34.3000 |
| U1-U4 | 129.8360 | 129.5900 | 61.8020 | 62.5260 |
| U2-U3 | 46.4650 | 46.3920 | 41.4000 | 42.1000 |
| U2-U4 | 89.2960 | 89.1500 | 82.7360 | 83.5070 |
| U3-U4 | 62.4660 | 62.4310 | 112.1610 | 112.9560 |
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 | 60895.06457811 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417039 |
| DEC | -29.00653 |
| 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 | 56.339 |
| HIERARCH ESO ISS PBL12 END | 56.278 |
| HIERARCH ESO ISS PBLA12 START | 27.3 |
| HIERARCH ESO ISS PBLA12 END | 28.0 |
| HIERARCH ESO ISS PBL13 START | 102.035 |
| HIERARCH ESO ISS PBL13 END | 101.9 |
| HIERARCH ESO ISS PBLA13 START | 33.7 |
| HIERARCH ESO ISS PBLA13 END | 34.3 |
| HIERARCH ESO ISS PBL14 START | 129.836 |
| HIERARCH ESO ISS PBL14 END | 129.59 |
| HIERARCH ESO ISS PBLA14 START | 61.802 |
| HIERARCH ESO ISS PBLA14 END | 62.526 |
| HIERARCH ESO ISS PBL23 START | 46.465 |
| HIERARCH ESO ISS PBL23 END | 46.392 |
| HIERARCH ESO ISS PBLA23 START | 41.4 |
| HIERARCH ESO ISS PBLA23 END | 42.1 |
| HIERARCH ESO ISS PBL24 START | 89.296 |
| HIERARCH ESO ISS PBL24 END | 89.15 |
| HIERARCH ESO ISS PBLA24 START | 82.736 |
| HIERARCH ESO ISS PBLA24 END | 83.507 |
| HIERARCH ESO ISS PBL34 START | 62.466 |
| HIERARCH ESO ISS PBL34 END | 62.431 |
| HIERARCH ESO ISS PBLA34 START | 112.161 |
| HIERARCH ESO ISS PBLA34 END | 112.956 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002914 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00324 |
| HIERARCH ESO ISS AMBI TEMP | 12.96 |
| HIERARCH ESO ISS AMBI FWHM START | 0.81 |
| HIERARCH ESO ISS AMBI FWHM END | 0.78 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |