Exposure
- ID
- GRAVI.2025-08-10T02:10:36.091_2
- Header ID
- GRAVI.2025-08-10T02:10:36.091
- Date updated
- 2025-08-10 02:25:36 UTC+0000
- Release date
- 2026-08-10 02:25:36 UTC+0000
- UTC Start
- 2025-08-10 02:10:36.091
- UTC End
- 2025-08-10 02:16:36.091
- MJD Start
- 60897.0906955
- MJD End
- 60897.09486216667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.003002
- Ambient temperature (°C)
- 12.36
- Seeing (arcsec)
- 0.87
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 | 55.7050 | 55.5710 | 31.7000 | 32.3000 |
| U1-U3 | 100.5830 | 100.2730 | 38.1000 | 38.6000 |
| U1-U4 | 126.7050 | 125.9900 | 66.6580 | 67.3060 |
| U2-U3 | 45.6440 | 45.4660 | 45.9000 | 46.4000 |
| U2-U4 | 87.1160 | 86.5900 | 88.1540 | 88.9310 |
| U3-U4 | 61.5630 | 61.3180 | 118.0820 | 118.9920 |
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 | 60897.0906955 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417406 |
| DEC | -29.00655 |
| 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 | 55.705 |
| HIERARCH ESO ISS PBL12 END | 55.571 |
| HIERARCH ESO ISS PBLA12 START | 31.7 |
| HIERARCH ESO ISS PBLA12 END | 32.3 |
| HIERARCH ESO ISS PBL13 START | 100.583 |
| HIERARCH ESO ISS PBL13 END | 100.273 |
| HIERARCH ESO ISS PBLA13 START | 38.1 |
| HIERARCH ESO ISS PBLA13 END | 38.6 |
| HIERARCH ESO ISS PBL14 START | 126.705 |
| HIERARCH ESO ISS PBL14 END | 125.99 |
| HIERARCH ESO ISS PBLA14 START | 66.658 |
| HIERARCH ESO ISS PBLA14 END | 67.306 |
| HIERARCH ESO ISS PBL23 START | 45.644 |
| HIERARCH ESO ISS PBL23 END | 45.466 |
| HIERARCH ESO ISS PBLA23 START | 45.9 |
| HIERARCH ESO ISS PBLA23 END | 46.4 |
| HIERARCH ESO ISS PBL24 START | 87.116 |
| HIERARCH ESO ISS PBL24 END | 86.59 |
| HIERARCH ESO ISS PBLA24 START | 88.154 |
| HIERARCH ESO ISS PBLA24 END | 88.931 |
| HIERARCH ESO ISS PBL34 START | 61.563 |
| HIERARCH ESO ISS PBL34 END | 61.318 |
| HIERARCH ESO ISS PBLA34 START | 118.082 |
| HIERARCH ESO ISS PBLA34 END | 118.992 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.002934 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.00307 |
| HIERARCH ESO ISS AMBI TEMP | 12.36 |
| HIERARCH ESO ISS AMBI FWHM START | 0.86 |
| HIERARCH ESO ISS AMBI FWHM END | 0.88 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |