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
2008-12-29 21:54:12 C 08 25 54.09 +13 01 39.9 w 160
2008-12-29 21:56:29 C 08 25 54.22 +13 01 41.0 w 160
2008-12-29 21:58:44 C 08 25 54.43 +13 01 42.1 w 160
2008-12-29 22:00:59 C 08 25 54.57 +13 01 42.5 w 160
2008-12-29 22:03:02 C 08 25 54.67 +13 01 44.2 w 160
2008-12-31 08:46:32 C 08 28 45.69 +13 17 06.5 o 691
2008-12-31 09:12:56 C 08 28 47.71 +13 17 19.3 o 691
2008-12-31 09:39:00 C 08 28 49.70 +13 17 32.0 o 691
2009-01-02 23:42:44 C 08 35 05.89 +13 54 10.1 o J93
2009-01-02 23:46:50 C 08 35 06.31 +13 54 13.0 o J93
2009-01-02 23:50:54 C 08 35 06.76 +13 54 16.1 o J93
2009-01-03 23:50:26 C 08 38 03.06 +14 12 58.4 w 160
2009-01-03 23:54:30 C 08 38 03.52 +14 13 01.7 w 160
2009-01-03 23:58:21 C 08 38 03.99 +14 13 05.2 w 160
2009-01-06 23:46:23 C 08 49 45.30 +15 30 08.5 o 510
2009-01-06 23:52:56 C 08 49 46.60 +15 30 17.3 o 510
2009-01-06 23:58:16 C 08 49 47.57 +15 30 24.9 o 510
2009-01-07 11:58:00 C 08 52 16.95 +15 47 54.6 o 691
2009-01-07 12:20:35 C 08 52 21.69 +15 48 27.2 o 691
2009-01-08 13:34:47 C 08 58 43.63 +16 30 25.1 r D35
2009-01-08 13:52:01 C 08 58 48.13 +16 30 58.1 r D35
2009-01-08 14:15:19 C 08 58 54.21 +16 31 42.7 r D35
2009-01-08 14:39:22 C 08 59 00.45 +16 32 28.8 r D35
2009-01-08 14:56:29 C 08 59 04.89 +16 33 00.5 r D35
2009-01-08 15:54:44 C 08 59 19.89 +16 34 52.6 r D35
2009-01-08 16:18:38 C 08 59 26.03 +16 35 38.3 r D35
2009-01-08 16:50:00 C 08 59 34.11 +16 36 38.0 r D35
2009-01-08 17:07:22 C 08 59 38.58 +16 37 11.0 r D35
2009-01-08 23:24:45 C 09 01 28.59 +16 48 39.2 o 510
2009-01-08 23:30:16 C 09 01 30.13 +16 48 50.3 o 510
2009-01-08 23:43:57 C 09 01 33.99 +16 49 17.8 o 510
2009-01-10 02:56:25 C 09 10 42.44 +17 50 04.7 v 204
2009-01-10 03:29:27 C 09 10 54.53 +17 51 26.0 v 204
2009-01-10 04:17:26 C 09 11 12.31 +17 53 24.2 v 204
2009-01-10 13:20:26 C 09 15 03.48 +18 17 43.5 r D35
2009-01-10 13:37:42 C 09 15 10.65 +18 18 33.2 r D35
2009-01-10 13:54:45 C 09 15 17.70 +18 19 22.1 r D35
2009-01-10 14:12:00 C 09 15 24.87 +18 20 11.9 r D35
2009-01-10 14:29:04 C 09 15 31.97 +18 21 01.0 r D35
2009-01-10 14:46:01 C 09 15 38.93 +18 21 49.8 r D35
2009-01-10 15:03:02 C 09 15 45.98 +18 22 38.8 r D35
2009-01-10 15:20:19 C 09 15 53.11 +18 23 28.7 r D35
2009-01-10 15:37:31 C 09 16 00.21 +18 24 18.3 r D35
2009-01-10 15:54:16 C 09 16 07.12 +18 25 06.6 r D35
2009-01-10 16:10:56 C 09 16 13.99 +18 25 54.5 r D35
2009-01-10 16:27:27 C 09 16 20.81 +18 26 42.1 r D35
2009-01-10 16:43:48 C 09 16 27.58 +18 27 29.3 r D35
2009-01-10 17:00:10 C 09 16 34.37 +18 28 16.3 r D35
2009-01-10 17:09:14 C 09 16 38.12 +18 28 42.4 r D35
2009-01-11 14:18:25 C 09 27 19.23 +19 35 04.3 r D35
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)