Exposure
- ID
- GRAVI.2024-07-18T02:57:21.450_2
- Header ID
- GRAVI.2024-07-18T02:57:21.450
- Date updated
- 2024-07-18 08:45:42 UTC+0000
- Release date
- 2025-07-18 08:45:39 UTC+0000
- UTC Start
- 2024-07-18 02:57:21.450
- UTC End
- 2024-07-18 03:03:21.450
- MJD Start
- 60509.12316493
- MJD End
- 60509.1273315967
- Exposure time (s)
- 360.0
- Validation level
- 1
- Tau 0: Coherence time (s)
- 0.0099895
- Ambient temperature (°C)
- 17.58
- Seeing (arcsec)
- 0.36
Observation
- ID
- 60139
- Category
- science
- Program ID
- 113.268P.004
- Program Title
- THE GALACTIC CENTER WITH GRAVITY - MEASURING THE SPIN OF SGR A* BY MEANS OF DEEP GRAVITY INTERFEROMETRY
- Program Type
- GTO
- PI / COI
- EISENHAUER / GILLESSEN / GENZEL / OTT / WIDMANN / DRESCHER / RIBEIRO / SADUN BORDONI / STRAUBMEIER / BRANDNER / PERRIN / ROUSSELET-PERRAUT / GARCIA / MANG / PAUMARD / ECKART / VINCENT / BOURDAROT / LUTZ / STURM / CAO / HORROBIN / LE BOUQUIN / KREIDBERG /
Target
- ID
- 43560
- Name
- IRS16C
- RA
- 266.417083333333
- DEC
- -29.0076816944444
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 | 56.3140 | 56.2500 | 27.6000 | 28.3000 |
| U1-U3 | 101.9790 | 101.8360 | 34.0000 | 34.6000 |
| U1-U4 | 129.7370 | 129.4630 | 62.1140 | 62.8340 |
| U2-U3 | 46.4350 | 46.3560 | 41.7000 | 42.4000 |
| U2-U4 | 89.2400 | 89.0700 | 83.0670 | 83.8380 |
| U3-U4 | 62.4550 | 62.4060 | 112.5000 | 113.3020 |
Header: used keywords
| Key | Value |
|---|---|
| HIERARCH ESO OBS PROG ID | 113.268P.004 |
| HIERARCH ESO DPR CATG | SCIENCE |
| HIERARCH ESO DPR TYPE | OBJECT,DUAL |
| MJD-OBS | 60509.12316493 |
| HIERARCH ESO DPR TECH | INTERFEROMETRY,WOLLASTON |
| HIERARCH ESO OBS TARG NAME | IRS16C |
| HIERARCH ESO INS SOBJ NAME | SGRA |
| RA | 266.416896 |
| DEC | -29.00733 |
| 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 | 56.314 |
| HIERARCH ESO ISS PBL12 END | 56.25 |
| HIERARCH ESO ISS PBLA12 START | 27.6 |
| HIERARCH ESO ISS PBLA12 END | 28.3 |
| HIERARCH ESO ISS PBL13 START | 101.979 |
| HIERARCH ESO ISS PBL13 END | 101.836 |
| HIERARCH ESO ISS PBLA13 START | 34.0 |
| HIERARCH ESO ISS PBLA13 END | 34.6 |
| HIERARCH ESO ISS PBL14 START | 129.737 |
| HIERARCH ESO ISS PBL14 END | 129.463 |
| HIERARCH ESO ISS PBLA14 START | 62.114 |
| HIERARCH ESO ISS PBLA14 END | 62.834 |
| HIERARCH ESO ISS PBL23 START | 46.435 |
| HIERARCH ESO ISS PBL23 END | 46.356 |
| HIERARCH ESO ISS PBLA23 START | 41.7 |
| HIERARCH ESO ISS PBLA23 END | 42.4 |
| HIERARCH ESO ISS PBL24 START | 89.24 |
| HIERARCH ESO ISS PBL24 END | 89.07 |
| HIERARCH ESO ISS PBLA24 START | 83.067 |
| HIERARCH ESO ISS PBLA24 END | 83.838 |
| HIERARCH ESO ISS PBL34 START | 62.455 |
| HIERARCH ESO ISS PBL34 END | 62.406 |
| HIERARCH ESO ISS PBLA34 START | 112.5 |
| HIERARCH ESO ISS PBLA34 END | 113.302 |
| HIERARCH ESO ISS AMBI TAU0 START | 0.008679 |
| HIERARCH ESO ISS AMBI TAU0 END | 0.0113 |
| HIERARCH ESO ISS AMBI TEMP | 17.58 |
| HIERARCH ESO ISS AMBI FWHM START | 0.37 |
| HIERARCH ESO ISS AMBI FWHM END | 0.35 |
| HIERARCH ESO FT ROBJ NAME | IRS16C |
| HIERARCH ESO FT ROBJ ALPHA | 174540.1000 |
| HIERARCH ESO FT ROBJ DELTA | -290027.6541 |