136849 (1998 CS1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5782683534 ± 1.48e-08
Semi-major axis (a)1.4915071025 AU ± 9.26e-10
Inclination (i)7.79146520° ± 2.71e-06
Long. of Asc. Node (Ω)110.66795390° ± 4.37e-06
Arg. of Perihelion (ω)97.81181498° ± 5.15e-06
Mean Anomaly (M)61.05048045° ± 3.12e-06
Mean Motion (n)0.5410959551°/day ± 5.04e-10
Perihelion dist (q)0.62901575 AU ± 2.21e-08
Aphelion dist (Q)2.35399846 AU ± 2.22e-08
Orbital Period1.82153696 yr ± 1.70e-09
Physical Parameters
H (abs. magnitude)17.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeApollo
MOID0.019663 AU
Observations Used705
Radar Obs Used3
Oppositions5
Arc Total1998-2025
First Observation Used1998-02-09
Last Observation Used2025-02-15
Observations (785)
Date Type RA Dec Mag Band Observatory
2016-03-27 03:14:45 C 03 41 19.98 +17 40 42.6 q G96
2017-11-14 16:30:45 C 05 24 41.04 +12 05 38.6 q D29
2017-11-14 16:51:07 C 05 24 39.95 +12 05 35.5 q D29
2017-11-14 17:11:30 C 05 24 38.87 +12 05 31.9 q D29
2017-11-16 07:55:57 C 05 22 36.17 +11 59 06.1 U G96
2017-11-16 08:04:20 C 05 22 35.68 +11 59 04.6 U G96
2017-11-16 08:12:47 C 05 22 35.19 +11 59 03.3 U G96
2017-11-16 08:21:08 C 05 22 34.73 +11 59 02.1 U G96
2017-11-20 11:26:45 C 05 16 35.28 +11 42 52.2 U T08
2017-11-20 11:48:19 C 05 16 33.76 +11 42 47.1 U T08
2017-11-20 11:57:11 C 05 16 33.20 +11 42 45.6 U T08
2017-11-20 12:14:54 C 05 16 31.92 +11 42 42.8 U T08
2017-11-25 17:04:37 C 05 07 26.78 +11 23 04.5 q D29
2017-11-25 17:28:48 C 05 07 24.79 +11 23 00.4 q D29
2017-11-25 17:53:00 C 05 07 22.81 +11 22 56.9 q D29
2017-11-27 06:51:38 C 05 04 22.40 +11 17 25.0 U 703
2017-11-27 06:59:21 C 05 04 21.71 +11 17 23.6 U 703
2017-11-27 07:07:06 C 05 04 21.04 +11 17 21.5 U 703
2017-11-27 07:14:47 C 05 04 20.39 +11 17 21.7 U 703
2017-12-06 00:45:05 C 04 44 48.91 +10 49 21.4 q 160
2017-12-06 00:48:07 C 04 44 48.55 +10 49 21.0 q 160
2017-12-06 00:51:08 C 04 44 48.22 +10 49 21.1 q 160
2017-12-15 06:42:46 C 04 20 53.26 +10 29 20.9 U 703
2017-12-15 06:50:20 C 04 20 52.42 +10 29 20.3 U 703
2017-12-15 06:57:55 C 04 20 51.52 +10 29 19.9 U 703
2017-12-15 07:05:30 C 04 20 50.65 +10 29 19.0 U 703
2017-12-16 05:47:49 C 04 18 18.72 +10 28 02.2 U G96
2017-12-16 05:55:17 C 04 18 17.86 +10 28 01.8 U G96
2017-12-16 06:02:44 C 04 18 17.00 +10 28 01.5 U G96
2017-12-16 06:10:10 C 04 18 16.15 +10 28 01.1 U G96
2017-12-17 00:32:46 C 04 16 12.44 +10 27 01.9 q 160
2017-12-17 00:35:45 C 04 16 12.13 +10 27 03.6 q 160
2017-12-17 00:38:44 C 04 16 11.74 +10 27 03.7 q 160
2017-12-17 23:26:29 C 04 13 39.05 +10 26 04.0 q 160
2017-12-17 23:29:27 C 04 13 38.72 +10 26 04.2 q 160
2017-12-17 23:32:25 C 04 13 38.34 +10 26 04.8 q 160
2017-12-19 00:16:53 C 04 10 52.34 +10 25 11.2 q 160
2017-12-19 00:19:53 C 04 10 52.07 +10 25 11.8 q 160
2017-12-19 00:22:54 C 04 10 51.82 +10 25 10.3 q 160
2017-12-20 23:25:05 C 04 05 38.56 +10 24 09.0 q 160
2017-12-20 23:27:51 C 04 05 38.25 +10 24 09.3 q 160
2017-12-20 23:30:38 C 04 05 38.01 +10 24 09.3 q 160
2017-12-22 06:44:06 C 04 02 12.05 +10 23 57.5 U 703
2017-12-22 06:51:41 C 04 02 11.18 +10 23 57.6 U 703
2017-12-22 06:59:17 C 04 02 10.33 +10 23 56.5 U 703
2017-12-22 07:06:53 C 04 02 09.49 +10 23 56.0 U 703
2017-12-23 23:37:10 C 03 57 45.61 +10 24 09.6 q 160
2017-12-23 23:40:12 C 03 57 45.31 +10 24 09.4 q 160
2017-12-23 23:43:14 C 03 57 44.99 +10 24 08.9 q 160
2017-12-24 05:57:17 C 03 57 05.03 +10 24 18.4 U G96
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-01-13 09:50:00 54746571.67 5 us 8560 -14 -14
2009-01-14 06:40:00 47122758.63 5 us 8560 -14 -14
2009-01-17 09:37:00 29259325.14 1 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)