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
2007-09-08 13:36:54 C 22 22 54.33 -26 20 21.2 r E12
2007-09-08 13:46:19 C 22 22 53.61 -26 20 22.5 r E12
2007-09-08 13:55:33 C 22 22 52.86 -26 20 23.7 r E12
2007-09-14 06:32:50 C 22 13 50.80 -26 30 01.6 r 703
2007-09-14 06:37:30 C 22 13 50.59 -26 30 01.0 r 703
2007-09-14 06:42:08 C 22 13 50.23 -26 30 00.6 r 703
2007-09-14 06:46:47 C 22 13 49.98 -26 30 01.5 r 703
2007-09-20 13:51:43 C 22 06 36.57 -26 22 26.5 r E12
2007-09-20 14:06:29 C 22 06 36.00 -26 22 25.1 r E12
2007-09-20 14:21:15 C 22 06 35.38 -26 22 23.2 r E12
2007-09-20 14:35:59 C 22 06 34.84 -26 22 22.0 r E12
2008-11-23 11:22:18 C 07 42 46.22 +13 11 52.0 r 703
2008-11-23 11:30:04 C 07 42 46.54 +13 11 50.8 r 703
2008-11-23 11:37:48 C 07 42 46.87 +13 11 49.2 r 703
2008-11-23 11:45:41 C 07 42 47.26 +13 11 48.0 r 703
2008-11-23 11:53:33 C 07 42 47.59 +13 11 46.4 r 703
2008-11-30 07:46:10 C 07 50 28.63 +12 47 00.2 18.5 c 704
2008-11-30 08:04:06 C 07 50 29.39 +12 46 58.4 19.1 c 704
2008-11-30 08:22:05 C 07 50 30.15 +12 46 56.0 18.8 c 704
2008-11-30 08:40:12 C 07 50 30.88 +12 46 52.9 18.4 c 704
2008-11-30 08:58:59 C 07 50 31.71 +12 46 51.0 18.4 c 704
2008-11-30 10:31:31 C 07 50 35.62 +12 46 37.8 r G96
2008-11-30 10:39:31 C 07 50 35.98 +12 46 36.6 r G96
2008-11-30 10:47:33 C 07 50 36.31 +12 46 35.6 r G96
2008-11-30 10:55:26 C 07 50 36.63 +12 46 34.5 r G96
2008-12-03 00:05:01 C 07 53 23.12 +12 38 25.2 r A13
2008-12-03 00:26:46 C 07 53 24.05 +12 38 22.7 r A13
2008-12-07 02:25:32 C 07 57 44.94 +12 27 12.7 r 130
2008-12-07 02:28:56 C 07 57 45.07 +12 27 12.3 r 130
2008-12-07 02:31:07 C 07 57 45.19 +12 27 11.9 r 130
2008-12-07 02:33:18 C 07 57 45.26 +12 27 11.5 r 130
2008-12-08 22:16:02 C 07 59 41.75 +12 23 03.6 r A13
2008-12-08 22:46:42 C 07 59 43.03 +12 23 01.3 r A13
2008-12-22 09:00:36 C 08 14 37.64 +12 20 24.8 r 703
2008-12-22 09:10:17 C 08 14 38.07 +12 20 25.8 r 703
2008-12-22 09:20:00 C 08 14 38.54 +12 20 26.9 r 703
2008-12-22 09:29:45 C 08 14 38.94 +12 20 27.9 r 703
2008-12-24 01:33:03 C 08 16 48.13 +12 25 33.1 r J75
2008-12-24 01:52:07 C 08 16 49.04 +12 25 36.1 r J75
2008-12-24 02:11:07 C 08 16 49.96 +12 25 39.0 r J75
2008-12-28 07:39:38 C 08 23 05.13 +12 48 26.9 15.7 c 704
2008-12-28 07:53:53 C 08 23 06.00 +12 48 31.5 15.9 c 704
2008-12-28 07:57:40 C 08 23 06.20 +12 48 32.6 16.0 c 704
2008-12-28 08:12:41 C 08 23 07.11 +12 48 37.2 16.0 c 704
2008-12-28 08:15:40 C 08 23 07.28 +12 48 38.4 16.0 c 704
2008-12-28 08:31:45 C 08 23 08.25 +12 48 43.1 16.1 c 704
2008-12-28 08:33:34 C 08 23 08.36 +12 48 44.0 16.1 c 704
2008-12-28 08:50:27 C 08 23 09.42 +12 48 49.2 16.2 c 704
2008-12-28 08:51:32 C 08 23 09.45 +12 48 49.7 16.1 c 704
2008-12-28 09:09:29 C 08 23 10.53 +12 48 54.0 16.1 c 704
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)