2025-04-21 / TYC 1911-00434-1 / (77) Frigga
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Jordi Marco | O+ | CCD | M235 | ES | NTP | 19:34:30 | 19:35:59.644 | 19:36:02.197 | 19:37:28 | 0.017 | 0.017 | 2.55 | 58.9 |
| 2 | show | Joan Aragones | O+ | CCD | M250 | ES | NTP | 19:34:30 | 19:35:59.47 | 19:36:02.08 | 19:37:52 | 0.1 | 0.1 | 2.61 | 60.3 |
| 3 | show | Jorge JUAN, Carles Schnabel | O+ | VID | M410 | ES | GPS | 19:34:28 | 19:35:58.15 | 19:36:00.67 | 19:37:31 | 0.04 | 0.04 | 2.52 | 58.2 |
3 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL#108 : c5966330-852b-11ef-78cd-0f96db3fa65d [db: asteroids] |
Using prediction c5966330-852b-11ef-78cd-0f96db3fa65d for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
|---|
|
Auto-Fit Result: Size = 66 x 3 km a',b' = 32.8, 1.7 km X0,Y0 = -589.9, 6.1 km Mean diameter = 15 km From 3 chords (VID,CCD) You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS). If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser). Check SiMDA for size and mass data. Check Johnston Archive for satellites. |
| Map with groundtrack and observer stations |
|---|
| Event Details |
|---|
Occultation UUID [and DB] : c5966330-852b-11ef-78cd-0f96db3fa65d [asteroids] Occultation Date + Time : 2025-04-21 at 19:34:33 UT +/- 0.0 min [1] Object Designation : (77) Frigga Orbit Class : MBA Star Designation : GDR3 0868070344301213184 Star Coordinates (ICRF) : RA = 07 35 26.7741, DE = +23 25 02.731 [2] Star Magnitudes : G = 10.0 mag, RP = 9.3 mag, BP = 10.54 mag Object Magnitude : V = 13.71 mag Estimated Magnitude Drop : 3.8 mag Estimated Max. Duration : 3.0 sec Object Mean Diameter : 69.2 km (src: astorb) Speed of the shadow : 23.1 km/s Elongation to Moon & Sun : 161° (sunlit = 42%), Sun = 80° Cross-track uncertainty : 0.7 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 0.85 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#108 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
| More Data and Informations |
|---|
(If error 404: link not valid which means no data available)
| Aladin Sky Atlas |
|---|
| Aladin Lite direct link (has Gaia overlay) |