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
2017-12-24 06:04:47 C 03 57 04.20 +10 24 18.4 U G96
2017-12-24 06:12:16 C 03 57 03.37 +10 24 18.5 U G96
2017-12-24 06:19:44 C 03 57 02.55 +10 24 18.7 U G96
2017-12-24 10:59:06 C 03 56 32.24 +10 24 26.0 U T05
2017-12-24 11:18:08 C 03 56 30.18 +10 24 25.7 U T05
2017-12-24 11:35:50 C 03 56 28.23 +10 24 26.4 U T05
2017-12-24 11:54:10 C 03 56 26.23 +10 24 26.6 U T05
2017-12-26 04:22:30 C 03 52 09.95 +10 25 32.2 U 703
2017-12-26 04:30:06 C 03 52 09.20 +10 25 32.6 U 703
2017-12-26 04:37:43 C 03 52 08.36 +10 25 32.6 U 703
2017-12-26 04:45:19 C 03 52 07.50 +10 25 32.8 U 703
2018-01-03 08:17:46 C 03 33 06.433 +10 40 55.56 U F51
2018-01-03 08:33:57 C 03 33 04.935 +10 40 57.47 U F51
2018-01-03 08:50:09 C 03 33 03.449 +10 40 59.34 U F51
2018-01-03 09:06:20 C 03 33 01.949 +10 41 01.24 U F51
2018-01-07 09:24:41 C 03 24 57.80 +10 54 50.4 U T08
2018-01-07 09:26:42 C 03 24 57.67 +10 54 50.5 U T08
2018-01-07 09:45:06 C 03 24 56.10 +10 54 53.6 U T08
2018-01-07 10:03:18 C 03 24 54.71 +10 54 55.6 U T08
2018-01-13 04:35:49 C 03 15 04.30 +11 22 04.4 U 703
2018-01-13 04:50:51 C 03 15 03.28 +11 22 08.0 U 703
2018-01-13 04:58:24 C 03 15 02.79 +11 22 09.7 U 703
2018-01-13 08:39:42 C 03 14 48.671 +11 23 02.39 U F51
2018-01-13 08:56:13 C 03 14 47.591 +11 23 05.99 U F51
2018-01-13 09:12:50 C 03 14 46.506 +11 23 09.65 U F51
2018-01-14 03:02:57 C 03 13 41.02 +11 27 16.9 U G96
2018-01-14 03:11:04 C 03 13 40.49 +11 27 18.9 U G96
2018-01-14 03:19:09 C 03 13 40.00 +11 27 21.1 U G96
2018-01-14 03:27:17 C 03 13 39.45 +11 27 22.7 U G96
2018-01-14 08:04:51 C 03 13 22.31 +11 28 31.3 U T08
2018-01-14 08:19:11 C 03 13 21.40 +11 28 34.9 U T08
2018-01-14 08:33:33 C 03 13 20.46 +11 28 37.0 U T08
2018-01-14 08:47:58 C 03 13 19.58 +11 28 41.5 U T08
2018-01-17 08:36:01 C 03 09 18.12 +11 46 59.1 U T05
2018-01-17 08:50:41 C 03 09 17.42 +11 47 02.1 U T05
2018-01-17 09:05:17 C 03 09 16.60 +11 47 06.1 U T05
2018-01-17 09:20:18 C 03 09 15.82 +11 47 10.2 U T05
2018-01-18 07:35:43 C 03 08 08.47 +11 53 18.2 U T08
2018-01-18 07:52:01 C 03 08 07.57 +11 53 22.8 U T08
2018-01-18 08:04:14 C 03 08 06.97 +11 53 27.9 U T08
2018-01-18 08:06:18 C 03 08 06.81 +11 53 27.3 U T08
2018-01-18 08:18:31 C 03 08 06.30 +11 53 29.1 U T08
2018-01-18 08:20:35 C 03 08 06.14 +11 53 31.1 U T08
2018-01-18 08:34:54 C 03 08 05.41 +11 53 34.8 U T08
2018-01-19 03:57:30 C 03 07 09.62 +11 59 03.3 U 703
2018-01-19 04:05:00 C 03 07 09.27 +11 59 04.9 U 703
2018-01-19 04:12:30 C 03 07 08.85 +11 59 07.1 U 703
2018-01-19 04:20:00 C 03 07 08.48 +11 59 09.8 U 703
2018-01-19 07:48:14 C 03 06 58.57 +12 00 10.5 U T08
2018-01-19 07:57:42 C 03 06 58.07 +12 00 15.0 U T08
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)