Exposure
- ID
- GRAVI.2025-08-10T02:03:09.072_2
- Header ID
- GRAVI.2025-08-10T02:03:09.072
- Date updated
- 2025-08-10 02:20:42 UTC+0000
- Release date
- 2026-08-10 02:20:42 UTC+0000
- UTC Start
- 2025-08-10 02:03:09.072
- UTC End
- 2025-08-10 02:09:09.072
- MJD Start
- 60897.08552167
- MJD End
- 60897.089688336666
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0034885000000000003
- Ambient temperature (°C)
- 12.41
- Seeing (arcsec)
- 0.8049999999999999
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 | 55.8440 | 55.7240 | 31.0000 | 31.6000 |
| U1-U3 | 100.9060 | 100.6280 | 37.4000 | 38.0000 |
| U1-U4 | 127.4460 | 126.8100 | 65.8970 | 66.5570 |
| U2-U3 | 45.8300 | 45.6700 | 45.2000 | 45.8000 |
| U2-U4 | 87.6570 | 87.1920 | 87.2610 | 88.0340 |
| U3-U4 | 61.8120 | 61.5980 | 117.0540 | 117.9430 |
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 | 60897.08552167 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417397 |
| DEC | -29.00652 |
| 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 | 55.844 |
| HIERARCH ESO ISS PBL12 END | 55.724 |
| HIERARCH ESO ISS PBLA12 START | 31.0 |
| HIERARCH ESO ISS PBLA12 END | 31.6 |
| HIERARCH ESO ISS PBL13 START | 100.906 |
| HIERARCH ESO ISS PBL13 END | 100.628 |
| HIERARCH ESO ISS PBLA13 START | 37.4 |
| HIERARCH ESO ISS PBLA13 END | 38.0 |
| HIERARCH ESO ISS PBL14 START | 127.446 |
| HIERARCH ESO ISS PBL14 END | 126.81 |
| HIERARCH ESO ISS PBLA14 START | 65.897 |
| HIERARCH ESO ISS PBLA14 END | 66.557 |
| HIERARCH ESO ISS PBL23 START | 45.83 |
| HIERARCH ESO ISS PBL23 END | 45.67 |
| HIERARCH ESO ISS PBLA23 START | 45.2 |
| HIERARCH ESO ISS PBLA23 END | 45.8 |
| HIERARCH ESO ISS PBL24 START | 87.657 |
| HIERARCH ESO ISS PBL24 END | 87.192 |
| HIERARCH ESO ISS PBLA24 START | 87.261 |
| HIERARCH ESO ISS PBLA24 END | 88.034 |
| HIERARCH ESO ISS PBL34 START | 61.812 |
| HIERARCH ESO ISS PBL34 END | 61.598 |
| HIERARCH ESO ISS PBLA34 START | 117.054 |
| HIERARCH ESO ISS PBLA34 END | 117.943 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.004178 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.002799 |
| HIERARCH ESO ISS AMBI TEMP | 12.41 |
| HIERARCH ESO ISS AMBI FWHM START | 0.71 |
| HIERARCH ESO ISS AMBI FWHM END | 0.9 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0980 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |