Exposure
- ID
- GRAVI.2025-08-08T02:55:56.760_2
- Header ID
- GRAVI.2025-08-08T02:55:56.760
- Date updated
- 2025-08-08 03:10:27 UTC+0000
- Release date
- 2026-08-08 03:10:27 UTC+0000
- UTC Start
- 2025-08-08 02:55:56.760
- UTC End
- 2025-08-08 03:01:56.760
- MJD Start
- 60895.12218472
- MJD End
- 60895.126351386665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.001951
- Ambient temperature (°C)
- 12.8
- Seeing (arcsec)
- 1.0150000000000001
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 | 54.7640 | 54.5580 | 34.8000 | 35.2000 |
| U1-U3 | 98.3940 | 97.9160 | 41.1000 | 41.6000 |
| U1-U4 | 121.5960 | 120.4770 | 70.2900 | 70.8890 |
| U2-U3 | 44.3800 | 44.1040 | 48.9000 | 49.4000 |
| U2-U4 | 83.3400 | 82.5140 | 92.7350 | 93.5520 |
| U3-U4 | 59.7950 | 59.4130 | 123.6400 | 124.6750 |
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 | 60895.12218472 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417584 |
| DEC | -29.00706 |
| 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 | 54.764 |
| HIERARCH ESO ISS PBL12 END | 54.558 |
| HIERARCH ESO ISS PBLA12 START | 34.8 |
| HIERARCH ESO ISS PBLA12 END | 35.2 |
| HIERARCH ESO ISS PBL13 START | 98.394 |
| HIERARCH ESO ISS PBL13 END | 97.916 |
| HIERARCH ESO ISS PBLA13 START | 41.1 |
| HIERARCH ESO ISS PBLA13 END | 41.6 |
| HIERARCH ESO ISS PBL14 START | 121.596 |
| HIERARCH ESO ISS PBL14 END | 120.477 |
| HIERARCH ESO ISS PBLA14 START | 70.29 |
| HIERARCH ESO ISS PBLA14 END | 70.889 |
| HIERARCH ESO ISS PBL23 START | 44.38 |
| HIERARCH ESO ISS PBL23 END | 44.104 |
| HIERARCH ESO ISS PBLA23 START | 48.9 |
| HIERARCH ESO ISS PBLA23 END | 49.4 |
| HIERARCH ESO ISS PBL24 START | 83.34 |
| HIERARCH ESO ISS PBL24 END | 82.514 |
| HIERARCH ESO ISS PBLA24 START | 92.735 |
| HIERARCH ESO ISS PBLA24 END | 93.552 |
| HIERARCH ESO ISS PBL34 START | 59.795 |
| HIERARCH ESO ISS PBL34 END | 59.413 |
| HIERARCH ESO ISS PBLA34 START | 123.64 |
| HIERARCH ESO ISS PBLA34 END | 124.675 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001804 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002098 |
| HIERARCH ESO ISS AMBI TEMP | 12.8 |
| HIERARCH ESO ISS AMBI FWHM START | 1.1 |
| HIERARCH ESO ISS AMBI FWHM END | 0.93 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |