Exposure
- ID
- GRAVI.2025-07-08T00:31:32.080_2
- Header ID
- GRAVI.2025-07-08T00:31:32.080
- Date updated
- 2025-07-08 00:45:33 UTC+0000
- Release date
- 2026-07-08 00:45:33 UTC+0000
- UTC Start
- 2025-07-08 00:31:32.080
- UTC End
- 2025-07-08 00:37:32.080
- MJD Start
- 60864.02189907
- MJD End
- 60864.02606573667
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0088565
- Ambient temperature (°C)
- 15.69
- Seeing (arcsec)
- 0.495
Observation
- ID
- 68254
- Category
- science
- Program ID
- 115.27WT.003
- 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
- 50720
- Name
- IRS16C
- RA
- 266.4170791666666
- 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 | 56.2470 | 56.2570 | 3.7000 | 4.6000 |
| U1-U3 | 100.9040 | 100.9740 | 8.8000 | 9.8000 |
| U1-U4 | 117.3530 | 118.1170 | 33.2430 | 34.5780 |
| U2-U3 | 45.1510 | 45.2270 | 15.1000 | 16.2000 |
| U2-U4 | 73.8230 | 74.8370 | 55.3060 | 56.6160 |
| U3-U4 | 48.9790 | 49.9170 | 91.8500 | 92.5900 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 115.27WT.003 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60864.02189907 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416189 |
| DEC | -29.00744 |
| 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 | 56.247 |
| HIERARCH ESO ISS PBL12 END | 56.257 |
| HIERARCH ESO ISS PBLA12 START | 3.7 |
| HIERARCH ESO ISS PBLA12 END | 4.6 |
| HIERARCH ESO ISS PBL13 START | 100.904 |
| HIERARCH ESO ISS PBL13 END | 100.974 |
| HIERARCH ESO ISS PBLA13 START | 8.8 |
| HIERARCH ESO ISS PBLA13 END | 9.8 |
| HIERARCH ESO ISS PBL14 START | 117.353 |
| HIERARCH ESO ISS PBL14 END | 118.117 |
| HIERARCH ESO ISS PBLA14 START | 33.243 |
| HIERARCH ESO ISS PBLA14 END | 34.578 |
| HIERARCH ESO ISS PBL23 START | 45.151 |
| HIERARCH ESO ISS PBL23 END | 45.227 |
| HIERARCH ESO ISS PBLA23 START | 15.1 |
| HIERARCH ESO ISS PBLA23 END | 16.2 |
| HIERARCH ESO ISS PBL24 START | 73.823 |
| HIERARCH ESO ISS PBL24 END | 74.837 |
| HIERARCH ESO ISS PBLA24 START | 55.306 |
| HIERARCH ESO ISS PBLA24 END | 56.616 |
| HIERARCH ESO ISS PBL34 START | 48.979 |
| HIERARCH ESO ISS PBL34 END | 49.917 |
| HIERARCH ESO ISS PBLA34 START | 91.85 |
| HIERARCH ESO ISS PBLA34 END | 92.59 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.00846 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.009253 |
| HIERARCH ESO ISS AMBI TEMP | 15.69 |
| HIERARCH ESO ISS AMBI FWHM START | 0.46 |
| HIERARCH ESO ISS AMBI FWHM END | 0.53 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.0990 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6520 |