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
1997-12-09 15:46:58 C 04 17 14.09 +12 59 29.4 z 402
1997-12-09 15:49:58 C 04 17 13.94 +12 59 21.9 z 402
1997-12-09 15:52:57 C 04 17 13.79 +12 59 14.9 z 402
1997-12-10 04:21:59 C 04 17 00.86 +12 30 20.4 z 670
1997-12-10 04:52:00 C 04 16 59.60 +12 29 14.3 z 670
1997-12-10 05:21:59 C 04 16 58.34 +12 28 07.6 z 670
1997-12-10 11:47:18 C 04 16 49.70 +12 13 50.5 z 355
1997-12-10 11:59:34 C 04 16 49.17 +12 13 23.6 z 355
1997-12-10 12:05:27 C 04 16 48.90 +12 13 11.4 z 355
1997-12-18 09:49:39 C 04 14 45.04 +07 23 08.3 658
1997-12-18 09:57:37 C 04 14 44.97 +07 23 00.1 658
1997-12-18 10:01:05 C 04 14 44.94 +07 22 56.5 658
1997-12-19 19:18:02 C 04 14 50.94 +06 51 24.2 046
1997-12-19 19:37:38 C 04 14 50.79 +06 51 06.0 046
1997-12-19 19:43:06 C 04 14 50.76 +06 51 01.9 046
1997-12-19 19:46:13 C 04 14 50.72 +06 50 59.2 046
1997-12-21 14:21:00 C 04 15 00.11 +06 16 50.9 360
1997-12-21 14:26:45 C 04 15 00.07 +06 16 46.9 360
1997-12-21 14:32:45 C 04 14 59.99 +06 16 42.2 360
1997-12-21 20:14:30 C 04 15 03.95 +06 12 21.1 046
1997-12-21 20:19:41 C 04 15 03.92 +06 12 17.9 046
1997-12-21 20:25:43 C 04 15 03.89 +06 12 13.4 046
1997-12-24 11:42:49 C 04 15 38.74 +05 33 58.8 18.1 z 422
1997-12-24 11:45:15 C 04 15 38.78 +05 33 56.3 17.8 z 422
1997-12-24 11:47:40 C 04 15 38.76 +05 33 55.9 17.8 z 422
1997-12-24 21:12:40 C 04 15 45.54 +05 27 54.7 z 104
1997-12-24 21:18:39 C 04 15 45.55 +05 27 51.8 z 104
1997-12-25 11:56:40 C 04 15 54.36 +05 20 55.4 o 566
1997-12-25 12:10:53 C 04 15 54.46 +05 20 48.8 o 566
1997-12-25 12:25:43 C 04 15 54.54 +05 20 41.3 o 566
1997-12-25 12:40:53 C 04 15 57.78 +05 20 24.5 z 402
1997-12-25 12:44:53 C 04 15 57.81 +05 20 22.1 z 402
1997-12-25 12:48:54 C 04 15 57.82 +05 20 20.6 z 402
1997-12-25 19:47:28 C 04 16 04.18 +05 16 56.1 z 118
1997-12-25 19:57:59 C 04 16 04.22 +05 16 51.3 z 118
1997-12-25 20:01:01 C 04 16 04.25 +05 16 50.0 z 118
1997-12-27 19:00:41 C 04 16 49.77 +04 57 50.8 046
1997-12-27 20:51:30 C 04 16 50.75 +04 57 12.2 046
1997-12-27 20:55:02 C 04 16 50.79 +04 57 10.7 046
1997-12-27 22:46:39 C 04 16 51.80 +04 56 35.1 z 104
1997-12-27 22:52:39 C 04 16 51.86 +04 56 33.0 z 104
1997-12-27 22:58:40 C 04 16 51.93 +04 56 30.7 z 104
1997-12-29 20:14:40 C 04 17 46.75 +04 42 48.3 z 587
1997-12-29 20:25:15 C 04 17 46.87 +04 42 45.8 z 587
1997-12-29 20:33:05 C 04 17 47.00 +04 42 43.3 z 587
1997-12-30 06:00:53 C 04 17 57.99 +04 40 30.3 z 711
1997-12-30 06:19:49 C 04 17 58.21 +04 40 25.4 z 711
1997-12-31 05:21:47 C 04 18 30.27 +04 35 15.4 z 711
1997-12-31 05:40:50 C 04 18 30.54 +04 35 11.5 z 711
1997-12-31 19:15:06 C 04 18 51.56 +04 32 22.1 046
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)