2020-06-24 / 4UC 312-236048 / (121) Hermione
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Jean-Louis Dumont | O+ | CCD | M408 | FR | GPS++ | 23:33:08 | 23:35:09.02 | 23:35:18.89 | 23:37:08 | 0.36 | 0.41 | 9.87 | 128.3 |
| 2 | show | Stefan Meister | O+ | CCD | M500 | CH | GPS++ | 23:33:47 | 23:34:27.17 | 23:34:35.92 | 23:35:17 | 0.35 | 1.10 | 8.75 | 113.8 |
| 3 | show | A. Leroy et al | O+ | CCD | M300 | FR | GPS++ | 23:07:00 | 23:34:55.33 | 23:35:04.71 | 23:12:00 | 0.50 | 0.63 | 9.38 | 121.9 |
| 4 | show | O. Schreurs et al | O+ | VID | M406 | BE | GPS++ | 23:34:06 | 23:34:38.54 | 23:34:47.82 | 23:35:49 | 0.96 | 0.64 | 9.28 | 120.6 |
| 5 | show | Chad Ellington | O+ | VID | M250 | DE | GPS++ | 23:33:11 | 23:34:34.71 | 23:34:44.59 | 23:36:09 | 1.07 | 1.07 | 9.88 | 128.4 |
| 6 | show | Tim Haymes | O+ | CCD | M279 | UK | GPS++ | 23:32:10 | 23:35:10.21 | 23:35:17.73 | 23:38:10 | 0.48 | 0.64 | 7.52 | 97.8 |
| 7 | show | Simon Kidd | O+ | CCD | M350 | UK | GPS++ | 23:34:00 | 23:35:03.47 | 23:35:12.65 | 23:36:15 | 0.61 | 0.46 | 9.18 | 119.3 |
| 8 | show | Wolfgang Beisker | O- | CCD | M535 | PT | 23:35:00 | 23:38:00 | |||||||
| 9 | show | Pietro Baruffetti | O- | VID | M300 | IT | 23:32:43 | 23:35:43 |
9 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#121 (23-01-08) : 3b06370d-5ecc-4c4c-be31-b5cd35756373 [db: observed] |
Using prediction 3b06370d-5ecc-4c4c-be31-b5cd35756373 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 407 x 129 km a',b' = 203.4, 64.4 km X0,Y0 = 1682.6, -24.4 km Mean diameter = 229 km From 7 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. |
Sky projection (artificial light) for occ. time: 2020-06-24, 23:34 UT (JD = 2459025.483)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 155 | None | 5.551 | 359°, 8° | 2.443032e6 | 15993.5 | 0.0° | None | 2010-04-15 | not scaled | 2009-08-27 |
| # 156 | 4.0 | 5.551 | 3°, 15° | 2.443032e6 | 15993.5 | 0.0° | None | 2017-09-21 | 200.0 +/- 15.0 km | 2017-09-21 |
Image size: 300px. Transparent image background for copy & paste
| Map with groundtrack and observer stations |
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| Event Details |
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Occultation UUID [and DB] : 3b06370d-5ecc-4c4c-be31-b5cd35756373 [observed] Occultation Date + Time : 2020-06-24 at 23:35:52 UT +/- 0.06 min [1] Object Designation : (121) Hermione Star Designation : GDR3 6762083647123963008 Star Coordinates (ICRF) : RA = 18 57 24.6006, DE = -27 42 17.029 [2] Star Magnitudes : G = 13.35 mag, RP = 12.81 mag, BP = 13.71 mag Object Magnitude : V = 12.24 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 16.1 sec Object Mean Diameter : 209 km (src: astorb+H10) Speed of the shadow : 13.0 km/s Elongation to Moon & Sun : 143° (sunlit = 15%), Sun = 170° Cross-track uncertainty : 15.3 mas = 26 km = 0.13 path-width (1-sig) RUWE and duplicate source : 0.94 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#121 (23-01-08) Object is a Gaia mass determination target ! [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
| More Data and Informations |
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(If error 404: link not valid which means no data available)
| Aladin Sky Atlas |
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| Aladin Lite direct link (has Gaia overlay) |