2022-02-08 / 4UC 638-016921 / (28P) Neujmin 1
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | L. Buzzi/A. Aletti | O+ | CCD | M840 | IT | NTP | 01:47:12 | 01:47:22.20 | 01:47:23.28 | 01:47:52 | 1.13 | 1.13 | 1.08 | 10.3 |
2 | show | Alberto Ossola | O+ | VID | M230 | CH | GPS++ | 01:45:23 | 01:47:21.13 | 01:47:22.41 | 01:49:28 | 0.16 | 0.16 | 1.28 | 12.2 |
3 | show | Stefano Sposetti | O+ | VID | M200 | CH | GPS++ | 01:42:44 | 01:47:19.73 | 01:47:21.49 | 01:51:06 | 0.32 | 0.48 | 1.76 | 16.7 |
4 | show | Pietro Baruffetti | O- | VID | M300 | IT | 01:45:22 | 01:49:24 | |||||||
5 | show | Gianni Casalnuovo | O- | CCD | M355 | IT | 01:45:00 | 01:49:00 |
5 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#? (22-10-22) : 657735ca-c426-4abd-a933-e3773f9700d3 [db: comets] |
CORAv1 (22-12-20) : 2dea85a1-01d9-463a-bc00-bad506648ef9 [db: comets] |
Using prediction 657735ca-c426-4abd-a933-e3773f9700d3 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 463 x 4 km a',b' = 231.4, 1.8 km X0,Y0 = -4333.6, -156.5 km Mean diameter = 41 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 |
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Event Details |
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Occultation UUID [and DB] : 657735ca-c426-4abd-a933-e3773f9700d3 [comets] Occultation Date + Time : 2022-02-08 at 01:47:33 UT +/- 0.2 min [1] Object Designation : (28P) Neujmin 1 Orbit Class : Star Designation : GDR3 0225755992321538048 Star Coordinates (ICRF) : RA = 04 14 11.2084, DE = +37 35 43.151 [2] Star Magnitudes : G = 11.87 mag, RP = 10.66 mag, BP = 13.45 mag Object Magnitude : V = 18.41 mag Estimated Magnitude Drop : 6.5 mag Estimated Max. Duration : 2.2 sec Object Mean Diameter : 21 km (src: JPL) Speed of the shadow : 9.5 km/s Elongation to Moon & Sun : 30° (sunlit = 45%), Sun = 108° Cross-track uncertainty : 36.7 mas = 88 km = 4.14 path-width (1-sig) RUWE and duplicate source : 1.58 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#? (22-10-22) [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) |