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
2003-11-19 05:58:23 C 03 08 35.34 -11 22 26.6 d 291
2004-10-10 09:03:46 C 06 27 01.45 +39 44 35.8 c 704
2004-10-10 09:19:36 C 06 27 01.76 +39 44 46.4 c 704
2004-10-10 09:35:23 C 06 27 01.99 +39 44 56.6 c 704
2004-10-10 09:51:10 C 06 27 02.24 +39 45 06.5 c 704
2004-11-10 08:27:04 C 06 23 58.14 +49 35 00.8 o 704
2004-11-10 08:45:36 C 06 23 57.44 +49 35 19.5 c 704
2004-11-10 09:04:10 C 06 23 56.77 +49 35 36.2 o 704
2004-11-10 09:22:45 C 06 23 56.00 +49 35 54.5 c 704
2004-11-10 09:41:10 C 06 23 55.29 +49 36 10.6 c 704
2004-11-20 09:45:17 C 06 11 43.90 +53 24 38.0 c 704
2004-11-20 10:03:09 C 06 11 42.66 +53 24 54.9 c 704
2004-11-20 10:21:02 C 06 11 41.45 +53 25 11.7 c 704
2004-12-02 08:27:57 C 05 46 07.10 +57 49 39.5 r H41
2004-12-02 08:30:08 C 05 46 06.83 +57 49 41.3 r H41
2004-12-02 08:32:11 C 05 46 06.56 +57 49 42.4 r H41
2004-12-02 08:34:21 C 05 46 06.39 +57 49 44.9 r H41
2004-12-02 08:36:33 C 05 46 06.09 +57 49 47.2 r H41
2004-12-07 08:22:50 C 05 31 25.24 +59 27 38.9 r H41
2004-12-07 08:26:07 C 05 31 24.66 +59 27 41.6 r H41
2004-12-07 08:29:22 C 05 31 24.16 +59 27 44.2 r H41
2004-12-07 08:33:40 C 05 31 23.65 +59 27 46.9 r H41
2004-12-10 07:34:20 C 05 21 37.42 +60 19 47.2 r H41
2004-12-10 07:37:23 C 05 21 36.92 +60 19 49.5 r H41
2004-12-10 07:39:50 C 05 21 36.67 +60 19 50.6 r H41
2004-12-10 07:42:18 C 05 21 36.22 +60 19 53.3 r H41
2004-12-13 06:18:03 C 05 11 11.659 +61 06 12.08 n 645
2004-12-13 06:19:15 C 05 11 11.468 +61 06 12.97 n 645
2004-12-13 06:21:38 C 05 11 11.097 +61 06 14.47 n 645
2004-12-13 06:22:50 C 05 11 10.913 +61 06 15.25 n 645
2004-12-13 17:40:29 C 05 09 27.76 +61 13 03.9 o 084
2004-12-13 20:17:18 C 05 09 03.73 +61 14 39.2 c A30
2004-12-13 20:19:57 C 05 09 03.32 +61 14 40.8 c A30
2004-12-13 20:23:17 C 05 09 02.86 +61 14 42.3 c A30
2004-12-19 06:31:01 C 04 48 15.61 +62 21 45.8 c 704
2004-12-19 06:49:14 C 04 48 12.48 +62 21 53.8 c 704
2004-12-19 07:07:49 C 04 48 09.47 +62 22 01.9 c 704
2004-12-19 07:26:08 C 04 48 06.44 +62 22 09.5 c 704
2004-12-19 07:44:20 C 04 48 03.35 +62 22 16.7 c 704
2004-12-19 18:49:57 C 04 46 14.33 +62 26 54.7 18.8 c 130
2004-12-19 19:07:43 C 04 46 11.44 +62 27 02.7 18.6 c 130
2004-12-19 19:17:15 C 04 46 09.83 +62 27 06.5 18.6 c 130
2004-12-20 20:21:53 C 04 42 00.38 +62 37 01.7 c A30
2004-12-20 20:22:07 C 04 42 00.37 +62 37 01.7 c A30
2004-12-20 20:28:24 C 04 41 59.21 +62 37 04.7 c A30
2004-12-21 06:37:42 C 04 40 17.65 +62 40 50.6 c 704
2004-12-21 06:59:23 C 04 40 14.00 +62 40 58.6 c 704
2004-12-21 07:19:44 C 04 40 10.62 +62 41 06.4 c 704
2004-12-21 07:38:49 C 04 40 07.37 +62 41 12.4 c 704
2004-12-21 07:58:59 C 04 40 03.99 +62 41 20.3 c 704
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)