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
2016-11-27 05:03:34 C 06 11 39.81 +32 52 58.3 q W34
2016-11-27 05:05:55 C 06 11 38.70 +32 52 44.2 q W34
2016-11-27 05:09:10 C 06 11 37.23 +32 52 24.9 q W34
2016-11-29 11:26:50 C 05 51 55.75 +27 45 25.7 L T05
2016-11-29 11:42:44 C 05 51 50.04 +27 44 02.1 L T05
2016-11-29 12:11:16 C 05 51 39.79 +27 41 31.3 L T05
2016-11-29 12:20:52 C 05 51 36.36 +27 40 40.3 L T05
2016-11-30 02:45:23 C 05 47 10.34 +26 25 24.0 c A24
2016-11-30 02:45:46 C 05 47 10.22 +26 25 22.1 c A24
2016-12-01 02:13:42 C 05 40 36.50 +24 31 14.1 c A24
2016-12-01 02:14:04 C 05 40 36.40 +24 31 12.5 c A24
2016-12-01 02:35:53 C 05 40 29.75 +24 29 31.5 q 160
2016-12-01 02:37:57 C 05 40 29.15 +24 29 21.6 q 160
2016-12-01 02:40:00 C 05 40 28.54 +24 29 11.8 q 160
2016-12-02 15:21:01 C 05 31 37.37 +21 46 17.1 q 168
2016-12-02 15:26:06 C 05 31 36.21 +21 45 56.7 q 168
2016-12-02 16:38:06 C 05 31 19.42 +21 41 05.2 q 168
2016-12-02 16:43:01 C 05 31 18.27 +21 40 45.3 q 168
2016-12-02 19:16:21 C 05 30 41.52 +21 30 22.9 q 168
2016-12-02 19:21:36 C 05 30 40.25 +21 30 01.5 q 168
2016-12-04 08:49:10 C 05 22 52.69 +19 06 01.6 q G96
2016-12-04 08:49:45 C 05 22 52.53 +19 05 59.4 q G96
2016-12-04 08:50:29 C 05 22 52.39 +19 05 56.7 q G96
2016-12-04 08:52:10 C 05 22 52.02 +19 05 50.5 q G96
2016-12-04 08:52:50 C 05 22 51.87 +19 05 48.1 q G96
2016-12-04 08:53:38 C 05 22 51.70 +19 05 45.2 q G96
2016-12-04 08:55:29 C 05 22 51.20 +19 05 38.3 q G96
2016-12-04 08:56:04 C 05 22 51.11 +19 05 36.7 q G96
2016-12-05 05:32:40 C 05 19 07.82 +17 53 04.7 P V78
2016-12-05 05:49:43 C 05 19 04.50 +17 52 09.1 P V78
2016-12-05 06:23:47 C 05 18 57.67 +17 50 14.2 P V78
2016-12-06 01:29:56 C 05 15 40.83 +16 48 00.1 q 160
2016-12-06 01:33:22 C 05 15 40.20 +16 47 49.5 q 160
2016-12-06 01:36:37 C 05 15 39.64 +16 47 39.1 q 160
2016-12-06 02:20:54 C 05 15 41.15 +16 45 21.5 R G45
2016-12-06 02:27:51 C 05 15 39.95 +16 45 00.4 R G45
2016-12-06 02:34:50 C 05 15 38.76 +16 44 39.2 R G45
2016-12-06 02:41:39 C 05 15 37.59 +16 44 18.5 R G45
2016-12-06 02:48:33 C 05 15 36.41 +16 43 57.7 R G45
2016-12-06 22:10:21 C 05 12 31.05 +15 45 11.5 15.8 v K63
2016-12-06 22:28:10 C 05 12 28.01 +15 44 19.5 15.2 v K63
2016-12-06 22:57:16 C 05 12 23.05 +15 42 55.3 15.8 v K63
2016-12-07 02:28:00 C 05 11 47.32 +15 32 37.7 q 160
2016-12-07 02:30:49 C 05 11 46.88 +15 32 29.0 q 160
2016-12-07 02:34:54 C 05 11 46.22 +15 32 17.2 q 160
2016-12-07 02:38:27 C 05 11 45.64 +15 32 06.7 q 160
2016-12-07 06:29:10 C 05 11 10.57 +15 22 52.0 r Y00
2016-12-07 06:31:01 C 05 11 10.17 +15 22 45.0 r Y00
2016-12-07 06:33:25 C 05 11 09.80 +15 22 37.1 r Y00
2016-12-08 00:19:51 C 05 08 43.58 +14 31 54.7 U 130
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)