Exposure
- ID
- GRAVI.2025-08-10T00:49:02.883_2
- Header ID
- GRAVI.2025-08-10T00:49:02.883
- Date updated
- 2025-08-10 01:05:44 UTC+0000
- Release date
- 2026-08-10 01:05:44 UTC+0000
- UTC Start
- 2025-08-10 00:49:02.883
- UTC End
- 2025-08-10 00:55:02.883
- MJD Start
- 60897.03406115
- MJD End
- 60897.038227816665
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0035615000000000004
- Ambient temperature (°C)
- 12.42
- Seeing (arcsec)
- 0.675
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 | 56.5350 | 56.5160 | 23.3000 | 24.1000 |
| U1-U3 | 102.4210 | 102.3930 | 29.6000 | 30.4000 |
| U1-U4 | 130.0880 | 130.1770 | 57.4580 | 58.2690 |
| U2-U3 | 46.6410 | 46.6360 | 37.3000 | 38.0000 |
| U2-U4 | 89.1310 | 89.2820 | 78.3100 | 79.1150 |
| U3-U4 | 62.0480 | 62.2010 | 107.8930 | 108.6330 |
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 | 60897.03406115 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.41676 |
| DEC | -29.00638 |
| 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 | 56.535 |
| HIERARCH ESO ISS PBL12 END | 56.516 |
| HIERARCH ESO ISS PBLA12 START | 23.3 |
| HIERARCH ESO ISS PBLA12 END | 24.1 |
| HIERARCH ESO ISS PBL13 START | 102.421 |
| HIERARCH ESO ISS PBL13 END | 102.393 |
| HIERARCH ESO ISS PBLA13 START | 29.6 |
| HIERARCH ESO ISS PBLA13 END | 30.4 |
| HIERARCH ESO ISS PBL14 START | 130.088 |
| HIERARCH ESO ISS PBL14 END | 130.177 |
| HIERARCH ESO ISS PBLA14 START | 57.458 |
| HIERARCH ESO ISS PBLA14 END | 58.269 |
| HIERARCH ESO ISS PBL23 START | 46.641 |
| HIERARCH ESO ISS PBL23 END | 46.636 |
| HIERARCH ESO ISS PBLA23 START | 37.3 |
| HIERARCH ESO ISS PBLA23 END | 38.0 |
| HIERARCH ESO ISS PBL24 START | 89.131 |
| HIERARCH ESO ISS PBL24 END | 89.282 |
| HIERARCH ESO ISS PBLA24 START | 78.31 |
| HIERARCH ESO ISS PBLA24 END | 79.115 |
| HIERARCH ESO ISS PBL34 START | 62.048 |
| HIERARCH ESO ISS PBL34 END | 62.201 |
| HIERARCH ESO ISS PBLA34 START | 107.893 |
| HIERARCH ESO ISS PBLA34 END | 108.633 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00391 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.003213 |
| HIERARCH ESO ISS AMBI TEMP | 12.42 |
| HIERARCH ESO ISS AMBI FWHM START | 0.67 |
| HIERARCH ESO ISS AMBI FWHM END | 0.68 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |