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
2018-01-19 08:03:13 C 03 06 57.95 +12 00 18.4 U T08
2018-01-19 08:18:29 C 03 06 57.02 +12 00 20.3 U T08
2018-01-19 08:27:42 C 03 06 56.61 +12 00 23.9 U T08
2018-01-19 08:33:41 C 03 06 56.30 +12 00 26.1 U T08
2018-01-30 05:40:55 C 02 58 21.208 +13 29 39.01 U F51
2018-01-30 05:56:15 C 02 58 20.850 +13 29 44.94 U F51
2018-01-30 06:11:43 C 02 58 20.485 +13 29 50.93 U F51
2018-01-31 06:40:40 C 02 57 52.512 +13 39 30.23 U F51
2018-01-31 06:58:28 C 02 57 52.125 +13 39 37.44 U F51
2018-01-31 07:14:20 C 02 57 51.801 +13 39 43.60 U F51
2018-02-02 10:46:45 C 02 57 03.92 +14 00 41.9 q D29
2018-02-02 11:16:02 C 02 57 03.35 +14 00 54.7 q D29
2018-02-02 11:45:17 C 02 57 02.92 +14 01 06.2 q D29
2018-02-05 03:44:17 C 02 56 21.38 +14 28 26.8 U 703
2018-02-05 03:51:54 C 02 56 21.35 +14 28 30.3 U 703
2018-02-05 03:59:31 C 02 56 21.26 +14 28 33.0 U 703
2018-02-05 04:07:08 C 02 56 21.15 +14 28 35.4 U 703
2018-02-25 03:24:19 C 02 59 09.62 +18 31 30.0 U G96
2018-02-25 03:31:41 C 02 59 09.70 +18 31 34.6 U G96
2018-02-25 03:39:02 C 02 59 09.80 +18 31 38.2 U G96
2018-02-25 03:46:25 C 02 59 09.87 +18 31 42.5 U G96
2018-02-27 01:13:19 C 02 59 50.68 +18 57 44.1 U W34
2018-02-27 01:35:15 C 02 59 50.91 +18 57 58.9 U W34
2018-06-21 10:51:55 C 00 50 30.34 +01 08 44.9 U 703
2018-06-21 10:57:06 C 00 50 30.53 +01 08 44.5 U 703
2018-06-21 11:02:16 C 00 50 30.69 +01 08 42.4 U 703
2018-06-21 11:07:27 C 00 50 30.95 +01 08 43.0 U 703
2018-08-18 13:52:20 C 00 34 05.05 -11 12 26.1 U T08
2018-08-18 14:10:19 C 00 34 03.64 -11 12 38.7 U T08
2018-08-18 14:28:56 C 00 34 02.17 -11 12 53.9 U T08
2018-08-18 14:48:26 C 00 34 00.73 -11 13 10.3 U T08
2018-08-19 13:44:30 C 00 32 18.28 -11 31 51.6 U T05
2018-08-19 13:59:10 C 00 32 17.13 -11 32 03.4 U T05
2018-08-19 14:14:39 C 00 32 15.89 -11 32 16.2 U T05
2018-08-19 14:29:15 C 00 32 14.78 -11 32 28.4 U T05
2018-08-20 13:58:20 C 00 30 27.23 -11 51 33.4 U T05
2018-08-20 14:13:50 C 00 30 25.94 -11 51 47.2 U T05
2018-08-20 14:19:20 C 00 30 25.49 -11 51 51.0 U T05
2018-08-20 14:28:34 C 00 30 24.80 -11 51 59.1 U T05
2018-08-20 14:44:04 C 00 30 23.57 -11 52 11.7 U T05
2018-08-20 14:49:46 C 00 30 23.10 -11 52 15.7 U T05
2018-08-21 12:33:50 C 00 28 41.704 -12 09 53.86 U F51
2018-08-21 12:49:43 C 00 28 40.395 -12 10 06.82 U F51
2018-08-21 13:05:33 C 00 28 39.102 -12 10 19.52 U F51
2018-08-21 13:17:30 C 00 28 38.13 -12 10 29.0 U T08
2018-08-21 13:20:16 C 00 28 37.93 -12 10 31.2 U T08
2018-08-21 13:32:38 C 00 28 37.06 -12 10 39.6 U T08
2018-08-21 13:35:25 C 00 28 36.69 -12 10 44.0 U T08
2018-08-21 13:49:28 C 00 28 35.45 -12 10 54.6 U T08
2018-08-21 14:04:11 C 00 28 34.25 -12 11 06.3 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)