2020-04-19 / 4UC 575-043563 / (139) Juewa
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Esteban Fernandez | O+ | VID | M203 | BE | GPS++ | 21:05:38 | 21:06:37.56 | 21:06:46.76 | 21:07:49 | 0.32 | 0.40 | 9.20 | 147.2 |
2 | show | Olivier Schreurs | O+ | VID | M280 | BE | GPS++ | 21:05:38 | 21:06:37.10 | 21:06:46.86 | 21:07:49 | 0.16 | 0.16 | 9.76 | 156.2 |
3 | show | Chad Ellington | O+ | VID | M250 | DE | GPS++ | 21:05:23 | 21:06:35.29 | 21:06:44.63 | 21:08:01 | 0.39 | 0.39 | 9.34 | 149.4 |
4 | show | Harrie Rutten | O+ | VID | M356 | NL | GPS++ | 21:03:00 | 21:06:33.33 | 21:06:40.37 | 21:08:00 | 0.16 | 0.16 | 7.04 | 112.6 |
5 | show | Henk De Groot | O+ | VID | M356 | NL | GPS++ | 21:04:33 | 21:06:30.51 | 21:06:37.74 | 21:08:51 | 0.17 | 0.17 | 7.23 | 115.7 |
6 | show | Jan-Maarten Winkel | O+ | VID | M310 | NL | GPS++ | 21:05:37 | 21:06:31.64 | 21:06:37.27 | 21:07:38 | 0.33 | 0.33 | 5.63 | 90.1 |
7 | show | Oliver Kloes | O- | CCD | M254 | DE | 21:06:30 | 21:06:56 |
7 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#127 : e74f745c-df36-4624-807a-677adc4954ee [db: observed] |
Using prediction e74f745c-df36-4624-807a-677adc4954ee for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 188 x 141 km a',b' = 93.8, 70.6 km X0,Y0 = -2437.6, 5.2 km Mean diameter = 163 km From 6 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. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : e74f745c-df36-4624-807a-677adc4954ee [observed] Occultation Date + Time : 2020-04-19 at 21:06:27 UT +/- 0.01 min [1] Object Designation : (139) Juewa Orbit Class : MBA Star Designation : GDR3 0690575151437373568 Star Coordinates (ICRF) : RA = 08 41 17.7083, DE = +24 55 54.603 [2] Star Magnitudes : G = 13.75 mag, RP = 13.25 mag, BP = 14.09 mag Object Magnitude : V = 12.54 mag Estimated Magnitude Drop : 0.3 mag Estimated Max. Duration : 9.8 sec Object Mean Diameter : 157 km (src: astorb) Speed of the shadow : 16.0 km/s Elongation to Moon & Sun : 131° (sunlit = 9%), Sun = 96° Cross-track uncertainty : 3.3 mas = 4 km = 0.03 path-width (1-sig) RUWE and duplicate source : 0.9 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#127 [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) |