2024-07-21 / G210017.9-131151 / (335) Roberta
| # | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | show | Ferran Casarramona | O+ | VID | M200 | ES | GPS | 21:18:02 | 21:18:45.60 | 21:18:58.40 | 21:20:01 | 0.16 | 0.40 | 12.80 | 84.5 |
| 2 | show | Mikhail Ashchepkau, Michel Turchenko | O+ | VID | M150 | BY | PHONE | 21:10:00 | 21:11:18.17 | 21:11:29.58 | 21:13:00 | 0.73 | 0.73 | 11.41 | 75.3 |
| 3 | show | Marian Urbanik | O- | VID | T4000 | SK | GPS | 21:12:50 | 21:14:45 | ||||||
| 4 | show | Marcin Filipek | O- | VID | M250 | PL | GPS | 21:13:10 | 21:13:40 |
4 observations found in db: sodis
Available (probably) matching predictions (click on the link to switch):| JPL#86 : 5dbc7800-c34f-11ef-5276-0c01ff76af0f [db: observed] |
| JPL#86 : 5dbc9f10-c34f-11ef-5276-a3e9ff1fc0fd [db: observed] |
| JPL#84 : 9a8f2f60-858e-11ef-78cd-5baaf6fcf520 [db: asteroids] |
| JPL#84 : 9a8f2f60-858e-11ef-78cd-08823fecb4ef [db: asteroids] |
Using prediction 9a8f2f60-858e-11ef-78cd-5baaf6fcf520 for map and profile fit
| Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = 2975.2, 15.1 km Circular diameter = 92 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. |
Sky projection (artificial light) for occ. time: 2024-07-21, 21:18 UT (JD = 2460513.388)
| DAMIT | Q | P (h) | λ, β | JD0 | JD-JD0 | φ0 | Version | Modified | Vol-equiv D | Cmnt |
|---|---|---|---|---|---|---|---|---|---|---|
| # 3100 | 3.0 | 12.027 | 105°, 48° | 2.444754e6 | 15759.4 | 0.0° | None | 2019-06-25 | 100.0 +/- 11.0 km | 2019-06-24 |
| # 3101 | 3.0 | 12.027 | 297°, 54° | 2.444754e6 | 15759.4 | 0.0° | None | 2019-06-25 | 98.0 +/- 9.0 km | 2019-06-24 |
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] : 9a8f2f60-858e-11ef-78cd-5baaf6fcf520 [asteroids] Occultation Date + Time : 2024-07-21 at 21:15:00 UT +/- 0.02 min [1] Object Designation : (335) Roberta Orbit Class : MBA Star Designation : GDR3 6888490861128180608 Star Coordinates (ICRF) : RA = 21 00 17.8857, DE = -13 11 51.594 [2] Star Magnitudes : G = 11.27 mag, RP = 10.07 mag, BP = 10.9 mag Object Magnitude : V = 11.38 mag Estimated Magnitude Drop : 0.8 mag Estimated Max. Duration : 13.5 sec Object Mean Diameter : 89 km (src: astorb) Speed of the shadow : 6.6 km/s Elongation to Moon & Sun : 11° (sunlit = 100%), Sun = 165° Cross-track uncertainty : 1.9 mas = 1 km = 0.02 path-width (1-sig) RUWE and duplicate source : 6.23 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#84 [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) |