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
2016-12-08 00:22:00 C 05 08 43.24 +14 31 48.9 U 130
2016-12-08 00:23:26 C 05 08 43.02 +14 31 45.0 U 130
2016-12-08 00:26:18 C 05 08 42.58 +14 31 37.4 U 130
2016-12-09 00:33:07 C 05 05 34.05 +13 29 54.7 q 160
2016-12-09 00:36:41 C 05 05 33.54 +13 29 45.8 q 160
2016-12-09 00:39:55 C 05 05 33.08 +13 29 37.8 q 160
2016-12-09 02:58:18 C 05 05 21.21 +13 23 54.7 P V78
2016-12-09 03:12:12 C 05 05 19.28 +13 23 21.9 P V78
2016-12-09 03:30:38 C 05 05 16.67 +13 22 36.3 P V78
2016-12-09 04:04:44 C 05 05 13.62 +13 21 31.2 o 691
2016-12-09 04:36:55 C 05 05 09.11 +13 20 15.1 o 691
2016-12-09 05:09:23 C 05 05 04.52 +13 18 58.1 o 691
2016-12-09 08:01:40 C 05 04 39.60 +13 12 06.2 q G96
2016-12-09 08:07:54 C 05 04 38.70 +13 11 51.3 q G96
2016-12-09 08:14:02 C 05 04 37.82 +13 11 36.5 q G96
2016-12-09 08:20:09 C 05 04 36.94 +13 11 21.8 q G96
2016-12-09 10:03:53 C 05 04 22.16 +13 06 47.7 P V78
2016-12-09 10:19:39 C 05 04 20.26 +13 06 09.9 P V78
2016-12-09 10:43:05 C 05 04 17.18 +13 05 13.2 P V78
2016-12-15 23:35:32 C 04 50 05.55 +08 22 12.2 17.0 q J43
2016-12-15 23:47:52 C 04 50 04.50 +08 21 55.7 16.8 q J43
2016-12-16 00:00:12 C 04 50 03.45 +08 21 39.1 16.8 q J43
2016-12-16 00:12:36 C 04 50 02.40 +08 21 22.4 16.9 q J43
2016-12-16 00:33:37 C 04 49 59.70 +08 20 39.2 q 160
2016-12-16 00:35:34 C 04 49 59.54 +08 20 36.6 q 160
2016-12-16 00:37:29 C 04 49 59.37 +08 20 34.1 q 160
2016-12-16 15:04:37 C 04 49 05.02 +08 02 01.7 q D29
2016-12-16 15:24:59 C 04 49 03.37 +08 01 36.1 q D29
2016-12-16 15:45:20 C 04 49 01.75 +08 01 10.2 q D29
2016-12-17 23:42:04 C 04 47 07.26 +07 23 04.7 q 160
2016-12-17 23:44:17 C 04 47 07.11 +07 23 02.3 q 160
2016-12-17 23:46:27 C 04 47 06.96 +07 22 59.8 q 160
2016-12-18 07:43:58 C 04 46 40.66 +07 14 26.5 q G96
2016-12-18 07:52:19 C 04 46 40.08 +07 14 17.3 q G96
2016-12-18 07:58:33 C 04 46 39.65 +07 14 10.6 q G96
2016-12-18 08:21:21 C 04 46 38.08 +07 13 45.6 q G96
2016-12-20 03:03:14 C 04 44 35.01 +06 31 13.7 q V83
2016-12-20 03:13:59 C 04 44 34.42 +06 31 03.7 q V83
2016-12-20 03:23:22 C 04 44 33.84 +06 30 57.1 q V83
2016-12-20 03:30:10 C 04 44 33.48 +06 30 49.0 q V83
2016-12-20 03:55:42 C 04 44 31.88 +06 30 25.7 q V83
2016-12-20 04:05:20 C 04 44 31.37 +06 30 17.6 q V83
2016-12-22 10:03:38 C 04 42 20.45 +05 46 35.0 L T05
2016-12-22 10:11:22 C 04 42 19.99 +05 46 29.8 L T05
2016-12-22 10:23:47 C 04 42 19.38 +05 46 20.2 L T05
2016-12-22 10:31:28 C 04 42 19.04 +05 46 14.6 L T05
2016-12-22 10:44:36 C 04 42 18.41 +05 46 05.7 L T05
2016-12-22 10:54:21 C 04 42 17.81 +05 45 58.4 L T05
2016-12-22 11:03:58 C 04 42 17.41 +05 45 50.9 L T05
2016-12-22 11:04:43 C 04 42 17.39 +05 45 50.1 L T05
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)