2022-07-15 / 4UC 410-122578 / (339) Dorothea
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Alberto Ossola | O+ | VID | M230 | CH | GPS++ | 20:26:44 | 20:28:06.8 | 20:28:09.6 | 20:29:42 | 0.3 | 0.3 | 2.80 | 30.8 |
2 | show | Stefano Sposetti | O+ | CCD | M420 | CH | GPS++ | 20:25:00 | 20:28:04.6 | 20:28:07.6 | 20:29:30 | 0.4 | 0.4 | 3.00 | 33.0 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#63 : f436c08e-a20a-4007-8744-ada982ab8fa8 [db: observed] |
JPL#63 : d4502086-a160-4356-8aec-737e00ec0bb7 [db: observed] |
Using prediction f436c08e-a20a-4007-8744-ada982ab8fa8 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 1603.9, 31.2 km Circular diameter = 35 km From 2 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 |
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Event Details |
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Occultation UUID [and DB] : f436c08e-a20a-4007-8744-ada982ab8fa8 [observed] Occultation Date + Time : 2022-07-15 at 20:26:00 UT +/- 0.02 min [1] Object Designation : (339) Dorothea Orbit Class : MBA Star Designation : GDR3 4206748740766737920 Star Coordinates (ICRF) : RA = 19 25 49.1957, DE = -08 07 29.707 [2] Star Magnitudes : G = 13.91 mag, RP = 13.06 mag, BP = 14.67 mag Object Magnitude : V = 13.37 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 3.5 sec Object Mean Diameter : 38 km (src: astorb) Speed of the shadow : 11.0 km/s Elongation to Moon & Sun : 36° (sunlit = 94%), Sun = 166° Cross-track uncertainty : 1.0 mas = 1 km = 0.03 path-width (1-sig) RUWE and duplicate source : 1.1 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#63 [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) |