2021-12-30 / HIP 4761 / (7641) Cteatus
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Pietro Baruffetti | O+ | VID | M300 | IT | GPS++ | 20:15:28 | 20:17:07.03 | 20:17:11.87 | 20:18:53 | 0.02 | 0.02 | 4.84 | 75.5 |
2 | show | Stefano Sposetti | O+ | CCD | M420 | CH | GPS++ | 20:14:00 | 20:16:52.91 | 20:16:53.28 | 20:20:00 | 0.03 | 0.03 | 0.37 | 5.8 |
3 | show | Stefano Sposetti | O- | VID | M200 | CH | 20:12:40 | 20:22:40 | |||||||
4 | show | Andrea Manna | O- | VID | M200 | CH | 20:11:55 | 20:19:24 |
4 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#56 : 90f34d4b-2923-4426-8638-b1b89bea0f56 [db: observed] |
Using prediction 90f34d4b-2923-4426-8638-b1b89bea0f56 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -2993.9, 36.9 km Circular diameter = 76 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] : 90f34d4b-2923-4426-8638-b1b89bea0f56 [observed] Occultation Date + Time : 2021-12-30 at 20:17:23 UT +/- 0.07 min [1] Object Designation : (7641) Cteatus Orbit Class : JTRO Star Designation : GDR3 0307449946780399232 Star Coordinates (ICRF) : RA = 01 01 10.7478, DE = +26 28 22.733 [2] Star Magnitudes : G = 7.11 mag, RP = 6.03 mag, BP = 8.28 mag Object Magnitude : V = 17.16 mag Estimated Magnitude Drop : 10.1 mag Estimated Max. Duration : 2.7 sec Object Mean Diameter : 43 km (src: astorb) Speed of the shadow : 15.6 km/s Elongation to Moon & Sun : 142° (sunlit = 12%), Sun = 104° Cross-track uncertainty : 1.3 mas = 4 km = 0.11 path-width (1-sig) RUWE and duplicate source : 1.05 mas, dup.src = 1 (0:false, 1:true) Ephemeris Reference : JPL#56 [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) |