2021-10-21 / G013724.6+140906 / (1647) Menelaus
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Ferran Casarramona | O+ | VID | M200 | ES | GPS++ | 20:10:59 | 20:14:35.35 | 20:14:38.07 | 20:18:43 | 0.04 | 0.04 | 2.72 | 46.8 |
2 | show | Daniel Blazewicz | O+ | CCD | M350 | PL | NTP+ | 20:11:01 | 20:12:31.36 | 20:12:31.94 | 20:14:25 | 0.03 | 0.03 | 0.58 | 10.0 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#55 : df639d3b-a68f-4a49-9fda-d61e23677db3 [db: observed] |
JPL#55 : 7ee1dc29-57ff-4839-a04f-c3cfc2174622 [db: observed] |
Using prediction df639d3b-a68f-4a49-9fda-d61e23677db3 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 6536.3, -3759.5 km Circular diameter = 52 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] : df639d3b-a68f-4a49-9fda-d61e23677db3 [observed] Occultation Date + Time : 2021-10-21 at 20:17:17 UT +/- 0.04 min [1] Object Designation : (1647) Menelaus Orbit Class : JTRO Star Designation : GDR3 2588607060230153088 Star Coordinates (ICRF) : RA = 01 37 24.5594, DE = +14 09 04.398 [2] Star Magnitudes : G = 12.24 mag, RP = 11.54 mag, BP = 12.16 mag Object Magnitude : V = 17.45 mag Estimated Magnitude Drop : 5.2 mag Estimated Max. Duration : 4.2 sec Object Mean Diameter : 72 km (src: astorb) Speed of the shadow : 17.2 km/s Elongation to Moon & Sun : 16° (sunlit = 99%), Sun = 176° Cross-track uncertainty : 3.7 mas = 11 km = 0.16 path-width (1-sig) RUWE and duplicate source : 1.44 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#55 [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) |