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
1997-12-07 05:25:15 C 04 19 08.55 +15 36 33.5 17.2 b 704
1997-12-07 05:26:00 C 04 19 08.39 +15 36 32.6 17.1 b 704
1997-12-07 05:26:45 C 04 19 08.51 +15 36 28.3 17.1 b 704
1997-12-07 05:27:30 C 04 19 08.56 +15 36 26.9 17.1 b 704
1997-12-07 05:28:14 C 04 19 08.25 +15 36 23.8 17.0 b 704
1997-12-07 05:28:59 C 04 19 08.38 +15 36 23.0 17.2 b 704
1997-12-07 05:29:44 C 04 19 08.14 +15 36 20.5 17.1 b 704
1997-12-07 05:30:29 C 04 19 08.27 +15 36 17.4 17.0 b 704
1997-12-07 05:31:14 C 04 19 08.36 +15 36 15.1 17.1 b 704
1997-12-07 05:31:59 C 04 19 07.99 +15 36 13.3 17.0 b 704
1997-12-07 05:32:44 C 04 19 08.08 +15 36 10.8 17.2 b 704
1997-12-07 05:33:29 C 04 19 07.90 +15 36 09.8 17.3 b 704
1997-12-07 05:34:14 C 04 19 08.08 +15 36 06.2 17.0 b 704
1997-12-07 05:34:58 C 04 19 08.11 +15 36 04.6 17.3 b 704
1997-12-07 05:35:43 C 04 19 07.66 +15 36 01.7 17.0 b 704
1997-12-07 06:17:52 C 04 19 06.53 +15 33 30.6 658
1997-12-07 06:20:53 C 04 19 06.41 +15 33 22.2 658
1997-12-07 06:27:35 C 04 19 05.99 +15 33 02.2 658
1997-12-07 06:34:29 C 04 19 05.56 +15 32 41.8 658
1997-12-07 06:53:05 C 04 19 03.03 +15 32 08.6 b 704
1997-12-07 06:54:36 C 04 19 02.93 +15 32 03.5 b 704
1997-12-07 06:56:51 C 04 19 02.77 +15 31 57.2 b 704
1997-12-07 06:58:22 C 04 19 02.70 +15 31 52.3 b 704
1997-12-07 07:00:45 C 04 19 02.51 +15 31 45.1 b 704
1997-12-07 07:02:15 C 04 19 02.42 +15 31 42.4 b 704
1997-12-07 07:04:32 C 04 19 02.29 +15 31 33.1 b 704
1997-12-07 07:06:03 C 04 19 02.10 +15 31 29.0 b 704
1997-12-07 07:09:55 C 04 19 01.62 +15 31 15.6 b 704
1997-12-07 15:06:35 C 04 18 44.12 +15 07 42.4 z 355
1997-12-07 15:31:58 C 04 18 42.61 +15 06 27.3 z 355
1997-12-07 19:53:10 C 04 18 38.95 +14 53 38.3 z 610
1997-12-07 20:00:46 C 04 18 38.56 +14 53 17.0 z 610
1997-12-07 20:11:11 C 04 18 38.02 +14 52 47.8 z 610
1997-12-07 20:21:09 C 04 18 37.50 +14 52 19.8 z 610
1997-12-07 20:30:39 C 04 18 36.93 +14 51 52.8 z 108
1997-12-07 20:31:12 C 04 18 36.98 +14 51 51.6 z 610
1997-12-07 20:37:54 C 04 18 36.59 +14 51 32.5 z 108
1997-12-07 20:58:39 C 04 18 35.43 +14 50 36.5 z 108
1997-12-07 21:01:04 C 04 18 35.38 +14 50 27.6 z 108
1997-12-09 00:10:48 C 04 17 47.47 +13 37 50.1 z 758
1997-12-09 00:22:28 C 04 17 47.14 +13 37 20.2 z 758
1997-12-09 00:35:08 C 04 17 46.47 +13 36 51.4 z 758
1997-12-09 03:53:00 C 04 17 39.89 +13 28 26.1 z 670
1997-12-09 03:58:03 C 04 17 38.29 +13 28 45.9 16.3 z 732
1997-12-09 04:07:54 C 04 17 37.71 +13 28 20.7 16.7 z 732
1997-12-09 04:12:59 C 04 17 38.99 +13 27 36.8 z 670
1997-12-09 04:17:43 C 04 17 37.27 +13 27 56.0 16.1 z 732
1997-12-09 04:29:20 C 04 17 36.55 +13 27 28.9 16.3 z 732
1997-12-09 04:38:00 C 04 17 37.78 +13 26 36.6 z 670
1997-12-09 04:55:00 C 04 17 36.94 +13 25 55.1 z 670
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)