137126 (1999 CF9)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6008300378 ± 2.00e+00
Semi-major axis (a)1.7700615799 AU ± 3.00e+00
Inclination (i)5.54396360° ± 4.00e+00
Long. of Asc. Node (Ω)156.84544990° ± 5.00e+00
Arg. of Perihelion (ω)90.61272758° ± 6.00e+00
Mean Anomaly (M)88.13582052° ± 4.25e-07
Mean Motion (n)0.4185330061°/day ± 1.06e+00
Perihelion dist (q)0.70655541 AU ± 3.74e+00
Aphelion dist (Q)2.83356775 AU ± 5.97e+00
Orbital Period2.35495473 yr ± 5.99e+00
NGA Modelr2
A2-1.50216202e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.08
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.304″
Uncertainty0
Orbit TypeApollo
MOID0.017566 AU
Observations Used1164
Oppositions15
Arc Total1999-2025
First Observation Used1999-01-15
Last Observation Used2025-12-24
Observations (1221)
Date Type RA Dec Mag Band Observatory
2002-11-11 06:14:30 C 04 58 44.15 +14 26 38.9 d 291
2004-11-10 06:45:18 C 03 09 10.86 +08 57 04.5 o 696
2004-11-10 06:52:47 C 03 09 10.55 +08 57 02.8 o 696
2005-11-06 11:22:20 C 08 28 58.19 +13 21 58.3 d 291
2005-11-06 11:30:30 C 08 28 58.48 +13 21 57.7 d 291
2005-11-06 11:38:34 C 08 28 58.72 +13 21 55.8 d 291
2005-12-30 09:34:39 C 08 31 34.04 +11 20 26.8 c 711
2005-12-30 09:50:05 C 08 31 33.34 +11 20 28.5 c 711
2005-12-30 09:58:28 C 08 31 33.00 +11 20 29.0 696
2005-12-30 10:05:32 C 08 31 32.59 +11 20 30.0 c 711
2005-12-30 11:10:50 C 08 31 29.66 +11 20 34.9 696
2006-01-05 06:58:54 C 08 24 32.96 +11 37 04.0 o 699
2006-01-05 07:33:06 C 08 24 31.02 +11 37 07.3 o 699
2006-01-05 08:07:20 C 08 24 28.92 +11 37 13.0 o 699
2006-01-05 08:41:34 C 08 24 26.89 +11 37 17.7 o 699
2006-01-18 06:26:56 C 08 02 44.70 +12 44 11.9 r 703
2006-01-18 06:39:12 C 08 02 43.54 +12 44 17.5 r 703
2006-01-18 06:51:32 C 08 02 42.46 +12 44 19.2 r 703
2006-01-18 07:03:50 C 08 02 41.49 +12 44 23.2 r 703
2006-01-23 06:58:27 C 07 52 16.36 +13 20 39.4 19.6 c 704
2006-01-23 07:17:37 C 07 52 14.49 +13 20 45.5 19.3 c 704
2006-01-23 07:36:12 C 07 52 12.80 +13 20 51.1 19.7 c 704
2006-01-23 07:54:46 C 07 52 11.08 +13 20 57.6 19.3 c 704
2006-01-28 21:41:16 C 07 39 40.79 +14 06 42.6 c 246
2006-01-28 21:42:14 C 07 39 40.67 +14 06 43.0 c 246
2006-01-28 21:44:06 C 07 39 40.49 +14 06 44.0 c 246
2006-01-28 21:44:52 C 07 39 40.44 +14 06 43.9 c 246
2006-01-28 21:45:38 C 07 39 40.33 +14 06 44.2 c 246
2006-01-28 21:46:34 C 07 39 40.24 +14 06 45.1 c 246
2006-02-02 06:36:12 C 07 29 32.49 +14 45 30.7 r G96
2006-02-02 06:44:08 C 07 29 31.70 +14 45 33.4 r G96
2006-02-02 06:51:54 C 07 29 30.91 +14 45 36.6 r G96
2006-02-02 06:59:43 C 07 29 30.12 +14 45 39.7 r G96
2006-02-03 06:25:22 C 07 27 13.99 +14 54 32.9 19.1 c 704
2006-02-03 06:45:21 C 07 27 12.01 +14 54 41.0 19.3 c 704
2006-02-03 07:05:15 C 07 27 10.05 +14 54 48.4 19.4 c 704
2006-02-03 07:25:18 C 07 27 08.03 +14 54 55.8 19.6 c 704
2006-03-01 19:10:15 C 06 36 34.04 +18 54 35.4 o 198
2006-03-01 19:11:59 C 06 36 33.95 +18 54 36.0 o 198
2006-03-01 19:13:42 C 06 36 33.86 +18 54 36.6 o 198
2006-03-01 19:18:02 C 06 36 33.63 +18 54 38.1 o 198
2006-03-01 19:19:45 C 06 36 33.54 +18 54 38.7 o 198
2006-03-15 01:31:25 C 06 25 43.94 +20 41 04.4 19.6 c H55
2006-03-15 01:56:18 C 06 25 43.47 +20 41 12.0 19.1 c H55
2006-03-15 02:18:54 C 06 25 43.06 +20 41 19.6 19.2 c H55
2006-08-21 08:31:46 C 02 13 20.51 +10 25 30.9 18.4 c 704
2006-08-21 08:47:10 C 02 13 19.39 +10 25 18.7 19.1 c 704
2006-08-21 09:02:41 C 02 13 18.43 +10 25 05.4 18.8 c 704
2006-08-21 09:18:10 C 02 13 17.29 +10 24 54.5 19.0 c 704
2006-08-21 09:33:43 C 02 13 16.30 +10 24 41.4 19.0 c 704
Radar Observations (12)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-08-21 03:10:00 319773.944 1.5 Hz 8560 -14 -14
2013-08-21 04:00:00 66346826.79 10 us 8560 -14 -14
2013-08-21 04:30:00 66282046.75 2 us 8560 -14 -14
2013-08-22 03:40:00 63921527.254 4 us 8560 -14 -14
2013-08-22 04:20:00 139016.798 2 Hz 8560 -14 -14
2013-08-23 03:20:00 63238391.082 2 us 8560 -14 -14
2013-08-23 03:40:00 -33068.671 1.5 Hz 8560 -14 -14
2013-08-25 01:20:00 66987518.311 2 us 8560 -14 -14
2025-03-08 09:30:00 -51357.8 2 Hz 8560 -14 -14
2025-03-08 10:20:00 52842415 2 us 8560 -14 -14
2025-03-08 10:50:00 52855887 1 us 8560 -14 -14
2025-03-10 16:10:00 59591765 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)