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
1997-12-31 19:20:07 C 04 18 51.64 +04 32 20.9 046
1997-12-31 19:25:07 C 04 18 51.70 +04 32 20.4 046
2006-02-24 10:25:52 C 13 25 32.16 -31 14 18.9 r G96
2006-02-24 10:29:42 C 13 25 32.19 -31 14 21.1 r G96
2006-02-24 10:31:02 C 13 25 32.12 -31 14 22.4 r G96
2006-02-24 10:33:37 C 13 25 32.16 -31 14 24.1 r G96
2006-02-24 10:34:56 C 13 25 32.26 -31 14 25.1 r G96
2006-02-24 10:37:31 C 13 25 32.23 -31 14 26.7 r G96
2006-02-24 10:38:47 C 13 25 32.19 -31 14 27.7 r G96
2006-04-22 13:01:08 C 11 49 15.81 -31 04 45.0 r E12
2006-04-22 13:24:06 C 11 49 12.79 -31 04 10.3 r E12
2006-04-22 13:47:05 C 11 49 09.94 -31 03 37.1 r E12
2006-05-06 12:02:00 C 11 18 05.13 -21 29 02.8 o D35
2006-05-06 12:06:01 C 11 18 04.94 -21 28 55.1 o D35
2006-05-06 12:29:21 C 11 18 02.96 -21 28 10.1 o D35
2006-05-06 12:33:21 C 11 18 02.53 -21 28 01.6 o D35
2006-05-22 22:08:56 C 11 03 12.69 -08 49 24.8 c 586
2006-05-24 03:25:23 C 11 02 54.41 -07 53 59.3 r 448
2006-05-24 03:42:24 C 11 02 54.02 -07 53 26.4 r 448
2006-05-24 03:55:50 C 11 02 53.76 -07 53 01.3 r 448
2006-06-15 04:50:06 C 11 07 00.00 +08 25 21.9 d 291
2006-06-15 04:56:23 C 11 07 00.01 +08 25 34.3 d 291
2006-06-15 05:02:29 C 11 07 00.07 +08 25 45.7 d 291
2006-06-20 04:21:59 C 11 08 24.13 +12 18 49.7 o 693
2006-06-20 04:24:52 C 11 08 24.15 +12 18 55.8 o 693
2006-06-20 04:27:44 C 11 08 24.14 +12 19 02.2 o 693
2006-06-20 04:30:37 C 11 08 24.15 +12 19 07.3 o 693
2006-12-17 04:02:05 C 09 50 58.25 +00 09 54.5 r 941
2006-12-17 04:05:21 C 09 50 58.18 +00 09 51.5 r 941
2006-12-17 04:52:36 C 09 50 56.75 +00 09 07.0 r 941
2006-12-17 04:54:14 C 09 50 56.70 +00 09 05.0 r 941
2006-12-17 04:57:30 C 09 50 56.61 +00 09 02.3 r 941
2007-01-15 06:18:37 C 09 01 44.25 -07 44 16.4 r 703
2007-01-15 06:33:07 C 09 01 42.56 -07 44 20.1 r 703
2007-01-15 06:47:42 C 09 01 40.87 -07 44 26.2 r 703
2007-01-15 07:03:58 C 09 01 38.78 -07 44 29.8 r 703
2015-05-14 20:39:10 S 21 41 52.054 -18 03 26.14 L C51
2015-05-15 02:57:05 S 21 43 39.785 -17 44 44.88 L C51
2015-05-15 06:06:08 S 21 44 33.655 -17 35 21.88 L C51
2015-05-15 09:15:00 S 21 45 27.468 -17 25 58.22 L C51
2015-05-15 10:49:37 S 21 45 54.413 -17 21 15.98 L C51
2015-05-15 13:58:29 S 21 46 48.16 -17 11 47.8 L C51
2015-05-15 15:33:06 S 21 47 15.09 -17 07 01.8 L C51
2015-05-15 17:07:32 S 21 47 41.95 -17 02 18.4 L C51
2015-05-15 20:16:35 S 21 48 35.80 -16 52 45.8 L C51
2015-05-15 23:25:27 S 21 49 29.45 -16 43 13.7 L C51
2015-05-16 02:34:30 S 21 50 23.22 -16 33 38.4 L C51
2015-05-16 05:43:22 S 21 51 16.949 -16 24 01.58 L C51
2015-05-16 05:43:34 S 21 51 17.01 -16 24 01.3 L C51
2016-01-03 09:40:09 C 11 20 08.05 -10 36 50.9 u H21
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)