2018-12-21 / 4UC 524-054132 / (326) Tamara
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Andrea Manna | O+ | VID | M200 | CH | GPS++ | 03:06:34 | 03:07:32.14 | 03:07:34.06 | 03:08:35 | 0.16 | 0.16 | 1.92 | 41.3 |
2 | show | Stefano Sposetti | O+ | VID | M280 | CH | GPS++ | 03:06:39 | 03:07:32.62 | 03:07:34.54 | 03:08:33 | 0.32 | 0.32 | 1.92 | 41.3 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#123 : 6e4a46ab-f209-4209-88d4-419cdf1a5947 [db: observed] |
Using prediction 6e4a46ab-f209-4209-88d4-419cdf1a5947 for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -795.5, -27.4 km Circular diameter = 41 km From 2 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] : 6e4a46ab-f209-4209-88d4-419cdf1a5947 [observed] Occultation Date + Time : 2018-12-21 at 03:10:54 UT +/- 0.0 min [1] Object Designation : (326) Tamara Orbit Class : MBA Star Designation : GDR3 3930362681815420288 Star Coordinates (ICRF) : RA = 12 58 02.3535, DE = +14 43 19.884 [2] Star Magnitudes : G = 12.12 mag, RP = 11.43 mag, BP = 12.67 mag Object Magnitude : V = 14.29 mag Estimated Magnitude Drop : 2.3 mag Estimated Max. Duration : 4.3 sec Object Mean Diameter : 93 km (src: astorb) Speed of the shadow : 21.5 km/s Elongation to Moon & Sun : 120° (sunlit = 96%), Sun = 82° Cross-track uncertainty : 3.0 mas = 5 km = 0.05 path-width (1-sig) RUWE and duplicate source : 1.13 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#123 [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) |