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
2016-03-01 08:10:32 C 10 16 15.73 -20 32 54.5 R G45
2016-03-01 08:17:51 C 10 16 14.86 -20 32 50.9 R G45
2016-03-02 04:28:31 C 10 14 02.44 -20 22 29.1 o 691
2016-03-02 04:32:07 C 10 14 01.99 -20 22 26.7 o 691
2016-03-02 04:35:41 C 10 14 01.56 -20 22 24.8 o 691
2016-03-03 05:37:30 C 10 11 15.65 -20 08 35.9 o 691
2016-03-03 05:41:05 C 10 11 15.23 -20 08 33.7 o 691
2016-03-03 05:44:40 C 10 11 14.81 -20 08 31.8 o 691
2016-03-14 07:34:22 C 09 44 35.240 -16 45 26.49 L F51
2016-03-14 07:50:26 C 09 44 33.738 -16 45 11.95 L F51
2016-03-14 08:22:40 C 09 44 30.705 -16 44 42.65 L F51
2016-04-04 03:13:39 C 09 19 23.09 -08 43 39.2 o 691
2016-04-04 03:18:13 C 09 19 23.02 -08 43 35.9 o 691
2016-04-04 03:22:48 C 09 19 22.89 -08 43 31.5 o 691
2016-04-15 04:13:24 C 09 20 11.16 -05 06 17.6 o 691
2016-04-15 04:18:18 C 09 20 11.22 -05 06 14.5 o 691
2016-04-15 04:23:13 C 09 20 11.32 -05 06 10.3 o 691
2016-04-29 04:15:16 C 09 31 54.68 -01 42 05.2 o 691
2016-04-29 04:33:52 C 09 31 55.61 -01 41 57.1 o 691
2016-05-31 04:57:40 C 10 26 49.25 +01 48 26.4 o 291
2016-05-31 05:04:18 C 10 26 49.79 +01 48 27.3 o 291
2016-05-31 05:10:52 C 10 26 50.43 +01 48 27.8 o 291
2016-11-13 05:10:01 S 11 24 35.37 +57 16 00.0 L C51
2016-11-13 08:18:42 S 11 20 58.58 +57 20 47.4 L C51
2016-11-13 09:53:08 S 11 19 09.23 +57 23 03.9 L C51
2016-11-14 13:29:58 C 10 46 04.91 +57 46 56.5 L T05
2016-11-14 13:45:33 C 10 45 44.76 +57 47 08.4 L T05
2016-11-14 14:06:47 C 10 45 17.05 +57 47 24.3 L T05
2016-11-14 14:23:07 C 10 44 55.56 +57 47 36.1 L T05
2016-11-17 10:36:52 C 09 17 24.77 +56 07 24.1 q W25
2016-11-17 10:51:48 C 09 17 04.94 +56 06 37.1 q W25
2016-11-18 13:02:41 C 08 45 38.91 +54 27 25.6 L T05
2016-11-18 13:19:24 C 08 45 18.27 +54 26 17.4 L T05
2016-11-18 13:36:03 C 08 44 57.66 +54 25 09.7 L T05
2016-11-18 13:52:38 C 08 44 37.13 +54 24 00.4 L T05
2016-11-20 03:52:17 C 08 03 47.31 +51 06 13.4 P V78
2016-11-20 03:52:55 C 08 03 46.78 +51 06 09.6 P V78
2016-11-20 03:53:33 C 08 03 46.36 +51 06 06.8 P V78
2016-11-21 05:14:58 C 07 40 02.89 +48 33 36.2 P V78
2016-11-21 05:25:11 C 07 39 53.76 +48 32 35.9 P V78
2016-11-21 05:38:53 C 07 39 41.43 +48 31 13.2 P V78
2016-11-27 04:17:05 C 06 11 55.06 +33 00 01.1 r Y00
2016-11-27 04:18:33 C 06 11 54.47 +32 59 49.3 r Y00
2016-11-27 04:20:01 C 06 11 53.67 +32 59 41.5 r Y00
2016-11-27 04:23:05 C 06 11 57.84 +32 56 55.9 q W34
2016-11-27 04:30:12 C 06 11 54.65 +32 56 13.9 q W34
2016-11-27 04:34:25 C 06 11 52.76 +32 55 49.1 q W34
2016-11-27 04:48:01 C 06 11 46.65 +32 54 29.5 q W34
2016-11-27 04:51:11 C 06 11 45.33 +32 54 11.0 q W34
2016-11-27 04:55:04 C 06 11 43.55 +32 53 47.4 q W34
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)