Exposure
- ID
- GRAVI.2025-06-15T01:50:59.716_2
- Header ID
- GRAVI.2025-06-15T01:50:59.716
- Date updated
- 2025-06-15 02:07:00 UTC+0000
- Release date
- 2026-06-15 02:06:59 UTC+0000
- UTC Start
- 2025-06-15 01:50:59.716
- UTC End
- 2025-06-15 01:56:59.716
- MJD Start
- 60841.07708005
- MJD End
- 60841.08124671667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0015609999999999999
- Ambient temperature (°C)
- 8.14
- Seeing (arcsec)
- 2.1100000000000003
Observation
- ID
- 67873
- Category
- science
- Program ID
- 115.27WT.002
- 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
- 45257
- Name
- IRS16C
- RA
- 266.4170791666666
- DEC
- -29.007681388888887
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 | 56.2340 | 56.2410 | 2.1000 | 3.1000 |
| U1-U3 | 100.8020 | 100.8600 | 7.0000 | 8.0000 |
| U1-U4 | 116.0700 | 116.8220 | 30.9030 | 32.2880 |
| U2-U3 | 45.0290 | 45.0990 | 13.1000 | 14.3000 |
| U2-U4 | 72.0670 | 73.1030 | 52.9750 | 54.3600 |
| U3-U4 | 47.3110 | 48.3010 | 90.5580 | 91.3220 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.002 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60841.07708005 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.417319 |
| DEC | -29.00779 |
| 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 | 56.234 |
| HIERARCH ESO ISS PBL12 END | 56.241 |
| HIERARCH ESO ISS PBLA12 START | 2.1 |
| HIERARCH ESO ISS PBLA12 END | 3.1 |
| HIERARCH ESO ISS PBL13 START | 100.802 |
| HIERARCH ESO ISS PBL13 END | 100.86 |
| HIERARCH ESO ISS PBLA13 START | 7.0 |
| HIERARCH ESO ISS PBLA13 END | 8.0 |
| HIERARCH ESO ISS PBL14 START | 116.07 |
| HIERARCH ESO ISS PBL14 END | 116.822 |
| HIERARCH ESO ISS PBLA14 START | 30.903 |
| HIERARCH ESO ISS PBLA14 END | 32.288 |
| HIERARCH ESO ISS PBL23 START | 45.029 |
| HIERARCH ESO ISS PBL23 END | 45.099 |
| HIERARCH ESO ISS PBLA23 START | 13.1 |
| HIERARCH ESO ISS PBLA23 END | 14.3 |
| HIERARCH ESO ISS PBL24 START | 72.067 |
| HIERARCH ESO ISS PBL24 END | 73.103 |
| HIERARCH ESO ISS PBLA24 START | 52.975 |
| HIERARCH ESO ISS PBLA24 END | 54.36 |
| HIERARCH ESO ISS PBL34 START | 47.311 |
| HIERARCH ESO ISS PBL34 END | 48.301 |
| HIERARCH ESO ISS PBLA34 START | 90.558 |
| HIERARCH ESO ISS PBLA34 END | 91.322 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.001478 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.001644 |
| HIERARCH ESO ISS AMBI TEMP | 8.14 |
| HIERARCH ESO ISS AMBI FWHM START | 2.0 |
| HIERARCH ESO ISS AMBI FWHM END | 2.22 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6530 |