2025-03-19 / UCAC4 593-023326 / (1356) Nyanza
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Peter Nosal | O+ | VID | M250 | SK | NTP | 21:10:02 | 21:11:08.230 | 21:11:12.130 | 21:12:23 | 0.1 | 0.1 | 3.90 | 62.8 |
2 | show | Peter Nosal, Paula Libic | O+ | VID | M200 | SK | NTP | 21:10:09 | 21:11:07.250 | 21:11:11.510 | 21:12:18 | 0.13 | 0.12 | 4.26 | 68.6 |
3 | show | Marek Harman | O+ | VID | M250 | SK | NTP | 21:09:10 | 21:11:07.69 | 21:11:10.81 | 21:13:18 | 0.06 | 0.06 | 3.12 | 50.2 |
4 | show | Tomas Janik | O+ | CCD | T600 | CZ | GPS | 21:10:12 | 21:10:47.41 | 21:10:51.61 | 21:12:18 | 0.17 | 0.18 | 4.20 | 67.6 |
5 | show | Zdenek Sikac | O- | VID | T150 | CZ | NTP | 21:09:00 | 21:13:00 |
5 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):JPL#65 : 98799d10-8713-11ef-78cd-2234eefd7d2d [db: asteroids] |
Using prediction 98799d10-8713-11ef-78cd-2234eefd7d2d for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: Size = 71 x 53 km a',b' = 35.5, 26.3 km X0,Y0 = -32.4, 22.6 km Mean diameter = 61 km From 4 chords (CCD,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. |
Sky projection (artificial light) for occ. time: 2025-03-19, 21:11 UT (JD = 2460754.383)
DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
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# 2597 | 1.5 | 12.411 | 327°, -49° | 2.451171e6 | 9583.4 | 0.0° | None | 2018-07-19 | not scaled | 2018-07-18 |
# 2598 | 1.5 | 12.411 | 149°, -31° | 2.451171e6 | 9583.4 | 0.0° | None | 2018-07-19 | not scaled | 2018-07-18 |


Image size: 300px. Transparent image background for copy & paste
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 98799d10-8713-11ef-78cd-2234eefd7d2d [asteroids] Occultation Date + Time : 2025-03-19 at 21:07:11 UT +/- 0.0 min [1] Object Designation : (1356) Nyanza Orbit Class : MBA Star Designation : GDR3 3443176226376667136 Star Coordinates (ICRF) : RA = 05 51 46.5922, DE = +28 31 11.006 [2] Star Magnitudes : G = 14.32 mag, RP = 13.93 mag, BP = 14.54 mag Object Magnitude : V = 16.08 mag Estimated Magnitude Drop : 2.0 mag Estimated Max. Duration : 4.0 sec Object Mean Diameter : 64.7 km (src: astorb) Speed of the shadow : 16.1 km/s Elongation to Moon & Sun : 152° (sunlit = 74%), Sun = 89° Cross-track uncertainty : 0.3 mas = 0 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.02 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#65 [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) |