2019-07-22 / 4UC 475-052038 / (3451) Mentor
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Carles Schnabel | O+ | VID | M400 | ES | GPS++ | 22:41:06 | 22:43:00.02 | 22:43:02.26 | 22:45:09 | 0.24 | 0.24 | 2.24 | 31.1 |
| 2 | show | Joan Rovira | O+ | VID | M200 | ES | GPS++ | 22:39:55 | 22:42:56.58 | 22:43:02.32 | 22:46:10 | 0.10 | 0.08 | 5.74 | 79.8 |
| 3 | show | Michel Boutet | O+ | VID | M300 | FR | GPS++ | 22:36:26 | 22:42:43.16 | 22:42:50.84 | 22:44:12 | 0.64 | 0.64 | 7.68 | 106.8 |
| 4 | show | Thomas Bellier | O- | CCD | V112 | FR | 22:41:38 | 22:46:08 | |||||||
| 5 | show | Peter Birtwhistle | O- | CCD | M405 | UK | 22:41:06 | 22:41:46 | |||||||
| 6 | show | Tim Haymes | O- | VID | M203 | UK | 22:39:40 | 22:43:30 | |||||||
| 7 | show | Adrian Jones | O- | VID | M305 | UK | 22:39:46 | 22:43:16 | |||||||
| 8 | show | Alex Pratt | O- | VID | M279 | UK | 22:40:36 | 22:42:33 |
8 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):| JPL#100 : 9dfe3788-e5b1-4e35-8b5e-ed4e63b5e8a0 [db: observed] |
Using prediction 9dfe3788-e5b1-4e35-8b5e-ed4e63b5e8a0 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 134 x 77 km a',b' = 67.0, 38.7 km X0,Y0 = -3325.7, 9.7 km Mean diameter = 102 km From 3 chords (VID) 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: 2019-07-22, 22:42 UT (JD = 2458687.446)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 4281 | 1.0 | 7.697 | 237°, 57° | 2.446145e6 | 12542.4 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
| # 4282 | 1.0 | 7.697 | 82°, 7° | 2.446145e6 | 12542.4 | 0.0° | None | 2019-09-26 | not scaled | 2019-05-07 |
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] : 9dfe3788-e5b1-4e35-8b5e-ed4e63b5e8a0 [observed] Occultation Date + Time : 2019-07-22 at 22:41:14 UT +/- 0.02 min [1] Object Designation : (3451) Mentor Orbit Class : JTRO Star Designation : GDR3 3671810559743190272 Star Coordinates (ICRF) : RA = 14 00 28.6920, DE = +04 52 54.035 [2] Star Magnitudes : G = 12.78 mag, RP = 12.31 mag, BP = 13.08 mag Object Magnitude : V = 16.27 mag Estimated Magnitude Drop : 3.5 mag Estimated Max. Duration : 4.9 sec Object Mean Diameter : 69 km (src: astorb) Speed of the shadow : 13.9 km/s Elongation to Moon & Sun : 158° (sunlit = 70%), Sun = 87° Cross-track uncertainty : 0.7 mas = 2 km = 0.04 path-width (1-sig) RUWE and duplicate source : 1.04 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#100 [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) |