433953 (1997 XR2)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2008557674 ± 2.00e+00
Semi-major axis (a)1.0765222503 AU ± 3.00e+00
Inclination (i)7.19113605° ± 4.00e+00
Long. of Asc. Node (Ω)250.62373550° ± 5.00e+00
Arg. of Perihelion (ω)84.51801041° ± 6.00e+00
Mean Anomaly (M)84.76752829° ± 6.26e-06
Mean Motion (n)0.8824249121°/day ± 3.69e+00
Perihelion dist (q)0.86029655 AU ± 3.22e+00
Aphelion dist (Q)1.29274795 AU ± 4.20e+00
Orbital Period1.11695201 yr ± 4.67e+00
NGA Modelr2
A23.56200169e-06 AU/d²
Physical Parameters
H (abs. magnitude)20.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.362″
Uncertainty0
Orbit TypeApollo
MOID0.000707 AU
Observations Used489
Oppositions3
Arc Total1997-2025
First Observation Used1997-12-04
Last Observation Used2025-12-28
Observations (558)
Date Type RA Dec Mag Band Observatory
1997-12-04 05:43:33 C 04 22 30.74 +19 51 32.8 b 704
1997-12-04 06:08:37 C 04 22 28.48 +19 49 48.8 16.7 b 704
1997-12-04 06:32:31 C 04 22 26.55 +19 48 06.4 17.3 b 704
1997-12-04 06:56:20 C 04 22 24.22 +19 46 32.2 16.9 b 704
1997-12-04 07:29:50 C 04 22 21.27 +19 44 13.6 b 704
1997-12-05 02:30:25 C 04 21 27.54 +18 29 00.8 b 704
1997-12-05 02:35:01 C 04 21 27.20 +18 28 43.9 b 704
1997-12-05 02:39:02 C 04 21 26.96 +18 28 29.0 b 704
1997-12-05 02:43:03 C 04 21 26.70 +18 28 14.1 b 704
1997-12-05 02:48:11 C 04 21 26.35 +18 27 55.3 b 704
1997-12-05 04:08:04 C 04 21 20.49 +18 23 03.1 b 704
1997-12-05 04:33:17 C 04 21 18.57 +18 21 30.4 b 704
1997-12-05 04:57:19 C 04 21 16.71 +18 20 01.8 b 704
1997-12-05 05:24:18 C 04 21 14.93 +18 18 24.2 17.3 b 704
1997-12-05 06:16:56 C 04 21 10.46 +18 15 07.2 b 704
1997-12-05 13:38:19 C 04 20 49.33 +17 48 07.8 z 355
1997-12-05 13:41:14 C 04 20 49.11 +17 47 57.2 z 355
1997-12-05 13:44:23 C 04 20 48.86 +17 47 46.2 z 355
1997-12-05 13:47:29 C 04 20 48.65 +17 47 34.6 z 355
1997-12-05 16:38:45 C 04 20 36.21 +17 37 17.7 z 402
1997-12-05 16:41:45 C 04 20 36.00 +17 37 06.7 z 402
1997-12-05 16:44:44 C 04 20 35.80 +17 36 55.9 z 402
1997-12-05 20:30:34 C 04 20 31.75 +17 23 18.2 046
1997-12-05 20:32:47 C 04 20 31.62 +17 23 10.7 046
1997-12-05 20:34:28 C 04 20 31.49 +17 23 04.3 046
1997-12-05 20:36:22 C 04 20 31.38 +17 22 58.1 046
1997-12-05 20:38:25 C 04 20 31.22 +17 22 51.2 046
1997-12-06 17:30:03 C 04 19 39.79 +16 13 00.6 046
1997-12-06 17:32:02 C 04 19 39.68 +16 12 54.0 046
1997-12-06 17:33:44 C 04 19 39.59 +16 12 48.9 046
1997-12-06 17:36:04 C 04 19 39.47 +16 12 41.2 046
1997-12-06 21:25:49 C 04 19 26.76 +16 00 47.8 046
1997-12-06 21:27:38 C 04 19 26.58 +16 00 42.3 046
1997-12-06 21:29:24 C 04 19 26.54 +16 00 36.6 046
1997-12-06 23:00:48 C 04 19 21.39 +15 55 56.1 z 587
1997-12-06 23:04:33 C 04 19 21.15 +15 55 44.3 z 587
1997-12-06 23:07:46 C 04 19 20.95 +15 55 34.2 z 587
1997-12-07 00:52:41 C 04 19 23.00 +15 50 27.6 z 758
1997-12-07 01:51:08 C 04 19 19.61 +15 47 32.5 z 758
1997-12-07 01:53:58 C 04 19 19.41 +15 47 23.9 z 758
1997-12-07 05:17:31 C 04 19 09.05 +15 36 57.0 17.1 b 704
1997-12-07 05:18:16 C 04 19 08.91 +15 36 55.3 17.1 b 704
1997-12-07 05:19:01 C 04 19 08.97 +15 36 52.0 17.0 b 704
1997-12-07 05:19:46 C 04 19 09.12 +15 36 50.3 17.1 b 704
1997-12-07 05:20:31 C 04 19 08.65 +15 36 47.2 17.0 b 704
1997-12-07 05:21:16 C 04 19 08.77 +15 36 46.2 17.2 b 704
1997-12-07 05:22:05 C 04 19 08.66 +15 36 43.4 17.1 b 704
1997-12-07 05:23:00 C 04 19 08.76 +15 36 40.3 17.1 b 704
1997-12-07 05:23:45 C 04 19 08.87 +15 36 37.3 17.1 b 704
1997-12-07 05:24:30 C 04 19 08.45 +15 36 35.9 17.1 b 704
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2016-11-16 13:00:00 57562.104 1 Hz 8560 -14 -14
2016-11-16 13:20:00 48003405.821 10 us 8560 -14 -14
2016-11-16 13:30:00 47999502.99 1 us 8560 -14 -14
2016-11-16 13:50:00 47991831.305 0.2 us 8560 -14 -14
2016-11-17 08:40:00 45428.255 0.5 Hz 8560 -14 -14
2016-11-17 08:50:00 47652875.31 0.5 us 8560 -14 -14
2016-11-26 06:03:00 55184292.03 4 us 2380 -1 -1
2016-12-06 05:14:00 83074742.44 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)