1580 Betulia (1950 KA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4876047101 ± 2.00e+00
Semi-major axis (a)2.1949743206 AU ± 3.00e+00
Inclination (i)52.18777815° ± 4.00e+00
Long. of Asc. Node (Ω)62.22480892° ± 5.00e+00
Arg. of Perihelion (ω)159.71713922° ± 6.00e+00
Mean Anomaly (M)80.26713945° ± 3.89e-05
Mean Motion (n)0.3030875594°/day ± 6.21e-01
Perihelion dist (q)1.12469450 AU ± 4.65e+00
Aphelion dist (Q)3.26525414 AU ± 6.26e+00
Orbital Period3.25195229 yr ± 6.67e+00
NGA Modelr2
A21.40142724e-06 AU/d²
Physical Parameters
H (abs. magnitude)14.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.282″
Uncertainty0
Orbit TypeAmor
MOID0.133321 AU
Observations Used1981
Radar Obs Used10
Gaia Obs Used93
Oppositions46
Arc Total1950-2016
First Observation Used1950-05-22
Last Observation Used2025-12-13
Observations (2056)
Date Type RA Dec Mag Band Observatory
2002-05-24 23:45:19 C 13 35 46.94 +37 02 58.7 232
2002-05-24 23:47:30 C 13 35 46.28 +37 02 40.4 232
2002-05-24 23:51:35 C 13 35 44.95 +37 02 06.2 232
2002-05-24 23:54:04 C 13 35 44.17 +37 01 45.3 232
2002-05-24 23:56:19 C 13 35 43.42 +37 01 26.5 232
2002-05-25 12:38:45 C 13 31 46.16 +35 14 27.6 355
2002-05-25 12:43:25 C 13 31 44.68 +35 13 47.9 355
2002-05-25 12:48:43 C 13 31 42.98 +35 13 02.2 355
2002-05-25 12:51:46 C 13 31 42.05 +35 12 36.6 355
2002-05-28 10:59:50 C 13 11 47.58 +24 37 45.7 379
2002-05-28 11:02:02 C 13 11 46.96 +24 37 25.2 379
2002-05-28 11:09:03 C 13 11 45.09 +24 36 19.4 379
2002-05-28 11:11:12 C 13 11 44.51 +24 35 58.7 379
2002-05-28 11:12:52 C 13 11 44.06 +24 35 43.1 379
2002-05-28 11:14:34 C 13 11 43.62 +24 35 27.3 379
2002-05-30 03:59:09 C 13 01 37.202 +18 06 57.10 g 689
2002-05-30 10:23:00 C 13 00 07.42 +17 06 17.0 d 428
2002-05-30 10:23:57 C 13 00 07.19 +17 06 08.0 d 428
2002-05-30 10:24:55 C 13 00 06.98 +17 05 59.0 d 428
2002-06-01 20:19:47 C 12 47 38.01 +07 58 31.9 a 233
2002-06-01 20:23:47 C 12 47 37.16 +07 57 55.4 a 233
2002-06-01 20:27:48 C 12 47 36.31 +07 57 18.6 a 233
2002-06-01 20:31:48 C 12 47 35.48 +07 56 41.7 a 233
2002-06-01 20:35:47 C 12 47 34.68 +07 56 05.1 a 233
2002-06-01 20:39:47 C 12 47 33.85 +07 55 28.5 a 233
2002-06-03 03:56:29 C 12 41 34.37 +03 13 25.9 14.0 c 704
2002-06-03 04:16:29 C 12 41 30.52 +03 10 29.8 14.2 c 704
2002-06-03 04:36:29 C 12 41 26.69 +03 07 33.9 14.1 c 704
2002-06-03 04:56:30 C 12 41 22.87 +03 04 37.7 14.1 c 704
2002-06-03 05:16:32 C 12 41 19.04 +03 01 41.5 14.2 c 704
2002-06-03 11:08:45 C 12 40 15.84 +02 10 18.8 c 379
2002-06-03 12:54:12 C 12 39 56.08 +01 55 01.6 c 379
2002-06-03 12:55:26 C 12 39 55.85 +01 54 50.8 c 379
2002-06-03 12:56:44 C 12 39 55.59 +01 54 39.6 c 379
2002-06-03 12:59:37 C 12 39 55.03 +01 54 15.2 c 379
2002-06-04 04:19:08 C 12 37 13.96 -00 16 56.8 13.8 c 644
2002-06-04 04:36:17 C 12 37 10.84 -00 19 21.6 13.9 c 644
2002-06-04 04:55:00 C 12 37 07.49 -00 21 59.3 13.9 c 644
2002-06-18 08:01:25 C 11 59 20.98 -32 09 22.8 e 428
2002-06-18 08:03:42 C 11 59 20.80 -32 09 31.0 e 428
2002-06-18 08:06:01 C 11 59 20.63 -32 09 38.6 e 428
2002-06-18 08:08:20 C 11 59 20.45 -32 09 46.3 e 428
2002-06-29 08:19:14 C 11 48 29.76 -43 12 54.4 e 428
2002-06-29 08:23:35 C 11 48 29.62 -43 13 02.8 e 428
2003-09-28 10:53:09 C 04 07 33.38 -11 01 04.3 o 699
2003-09-28 11:12:14 C 04 07 32.77 -11 01 08.3 o 699
2003-09-28 11:31:21 C 04 07 32.33 -11 01 10.8 o 699
2003-09-28 11:50:26 C 04 07 31.88 -11 01 14.2 o 699
2003-11-19 05:39:21 C 03 08 36.44 -11 22 30.3 d 291
2003-11-19 05:47:39 C 03 08 35.97 -11 22 28.7 d 291
Radar Observations (22)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1976-05-18 05:56:50 225980 7 Hz 2380 -1 -1
1976-05-18.247801 22598000 100 Hz 2380 251 251
1976-05-19 05:52:16 186012.5 7 Hz 2380 -1 -1
1976-05-19.244630 18601250 100 Hz 2380 251 251
1989-05-23 12:00:00 501134 20 Hz 8495 -14 -14
1989-05-23.500000 50113400 2000 Hz 8495 253 253
1989-05-26 01:42:00 185537450 12 us 2380 -1 -1
1989-05-26.070833 18553745000 12000 us 2380 251 251
1989-05-28 01:38:00 185094484 12 us 2380 -1 -1
1989-05-28.068056 18509448400 12000 us 2380 251 251
1989-05-29 00:20:00 -72175 5 Hz 2380 -1 -1
1989-05-29.013889 -7217500 500 Hz 2380 251 251
2002-05-28.997222 23747341100 10000 us 2380 251 251
2002-05-30 01:10:00 237420023 2 us 2380 -1 -1
2002-05-30 01:10:00 -16023.93 1 Hz 2380 -1 -1
2002-05-30.048611 23742002300 2000 us 2380 251 251
2002-06-01 00:57:00 240888928 2 us 2380 -1 -1
2002-06-01 00:57:00 -80205.3478 1 Hz 2380 -1 -1
2002-06-01.039583 24088892800 2000 us 2380 251 251
2002-06-03 00:09:00 248731233 2 us 2380 -1 -1
2002-06-03 00:09:00 -138436.315 1 Hz 2380 -1 -1
2002-06-03.006250 24873123300 2000 us 2380 251 251
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)