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1580 Betulia (1950 KA)
Classification: Amor [NEO]          SPK-ID: 2001580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 257 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4873502062220318 2.2328e-08  
a 2.197150031596911 2.6855e-10 au
q 1.126368510597413 4.911e-08 au
i 52.09207131550431 9.4125e-06 deg
node 62.29781962341903 2.4901e-06 deg
peri 159.5179510015747 6.759e-06 deg
M 195.0724536910258 1.9811e-06 deg
tp 2459545.477653098300
(2021-Nov-26.97765310)
6.5773e-06 TDB
period 1189.564505785125
3.26
2.181e-07
5.971e-10
d
yr
n .3026317599837903 5.5485e-11 deg/d
Q 3.267931552596409 3.9943e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   # delay obs. used      5  
   # Doppler obs. used      6  
   data-arc span      25809 days (70.66 yr)  
   first obs. used      1950-05-22  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51336  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-19 05:27:51  

Additional Information
 Earth MOID = .136137 au 
 Jupiter MOID = 1.86223 au 
 T_jup = 3.065 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO435711  
magnitude slope G 0.00   n/a PDS3 (MPC 17262) Fit
diameter diameter 5.8 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 6.1324 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Austin, R.R.D. (1976) Southern Stars 26, 228-230.]
[Tedesco, E.F.; Drummond, J.; Candy, M.; Birch, P.; et al. (1978) Icarus 35, 344-359.]
[Drummond, J.D.; Wisniewski, W.Z. (1990) Icarus 83, 349-359.]
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Magri, C.; Ostro, S.J.; Scheeres, D.J.; Nolan, M.C.; et al. (2007) Icarus 196, 152-177.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.08   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.656   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=14; phase (min.=8.86, mean=18.58, max.=39.44) deg.
U-B UB 0.249   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=8.86, mean=15.33, max.=39.44) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1580 Betulia (1950 KA)          Discovered 1950-May-22 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1911-May-07 13:13 < 00:01 Earth 0.485626342179179 0.48562569926817 0.485626985090242 28.6869582602816 28.6867669989978 2419164.050675483 0.0166316857456551 33.2385655119477 10.6083292347786 16.1743820374096 2793930.05434789 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1924-May-10 05:06 < 00:01 Earth 0.383323028836107 0.383322444543758 0.383323613128521 28.2361555847232 28.2359094098218 2423915.712636496 0.0159871886218842 30.5426049043617 8.87623348592465 18.2685287485507 2657437.07064665 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1929-Jun-09 14:54 < 00:01 Jupiter 1.84955831605693 1.84955803177787 1.8495586003361 11.3576540960598 11.3172606170763 2425772.120601570 0.10301347793822 37.1628382787138 11.2049471094438 -75.895917290384 5696918.25025804 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1937-May-14 10:01 < 00:01 Earth 0.275066742608094 0.275066234682203 0.27506725053411 27.9374282044775 27.9370814751774 2428667.917440356 0.0138181421227685 27.1624736061173 6.39412793562073 21.819536758446 2718956.24715943 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1950-May-18 06:48 < 00:01 Earth 0.188184309572657 0.188183904756038 0.188184714389554 27.849936042898 27.8494276391908 2433419.783413285 0.0112828714744799 23.3371299491028 4.4777215713941 30.7484030185512 3298391.50191038 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1963-May-19 23:06 < 00:01 Earth 0.15787496956198 0.157874666027116 0.15787527309705 27.9571288027385 27.9565251166075 2438169.462747509 0.00850836081110901 17.7934640962884 4.36035137678669 32.8372268786146 3077705.96226972 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1965-Mar-17 09:33 < 00:01 Jupiter 1.92262334028024 1.92262297153309 1.92262370902762 11.1486211371948 11.1090342524757 2438836.898148432 0.110704725283599 39.0435467800323 5.84842905421177 -63.0997773339426 5853085.49842763 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1976-May-22 19:40 < 00:01 Earth 0.129802689801035 0.129802544873109 0.129802834729337 28.228124713836 28.2273975165804 2442921.319418103 0.00541507556707101 13.7462577496784 2.55517748394488 59.9661049271012 6358825.55538759 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
1989-May-27 05:12 < 00:01 Earth 0.184957796490839 0.184957771581019 0.18495782140067 28.8707337363248 28.8702347534445 2447673.716958691 0.00416478729357625 12.5847712494797 1.23541621144643 -89.4085816379486 21136344.4202009 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2002-May-29 13:32 < 00:01 Earth 0.237797072794251 0.237797066293526 0.237797079294976 29.2104928571171 29.2101092648715 2452424.063710674 0.00406520086496814 10.8436737296817 0.323609159070331 -89.903068148668 41877192.0865265 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2015-Jun-03 08:52 < 00:01 Earth 0.352185542072758 0.352185482484914 0.352185601660783 30.3291389094393 30.3288894599959 2457176.869196217 0.004829513019927 14.3907009659811 1.36215858792026 -79.3774992791625 32675241.1181478 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2028-Jun-07 13:47 < 00:01 Earth 0.477847008611197 0.477846905163398 0.477847112059241 31.8636816304808 31.8635066342383 2461930.074591017 0.00697608406985438 20.5667520030369 2.57452018714705 -77.34536086259 24378053.9664572 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2059-Aug-19 22:11 < 00:01 Jupiter 1.97453480939495 1.97453451361726 1.97453510517263 12.0654754605123 12.0298691467576 2473325.424441923 0.126249386827121 41.5933359380114 14.2468585516878 85.030773677554 5745378.43391823 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2090-May-08 15:44 < 00:01 Earth 0.485776836594205 0.485776634179072 0.485777039009365 28.7177714269427 28.7175804300667 2484545.155411455 0.0255664135136138 16.275143205362 8.45379215065457 66.6373321324587 7800132.98659756 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2095-May-29 16:59 < 00:01 Jupiter 1.86519083140763 1.86519057075033 1.86519109206502 11.5815574142594 11.5422801012528 2486392.207506142 0.123466340461211 41.5944668181286 11.5119907414313 -81.551561102082 5612720.86691535 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2103-May-13 09:00 < 00:01 Earth 0.380082720309299 0.380082501023193 0.380082939595491 28.2327616133487 28.232513309884 2489296.874742376 0.024752115495589 17.1540569203695 8.20141475622755 61.3121243153823 6053258.16944279 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2116-May-15 23:09 < 00:01 Earth 0.287776758425361 0.287776538504973 0.287776978345929 27.8883435697621 27.8880115709687 2494048.464499439 0.0241820927795913 18.836126643541 7.3934593008078 62.1267852429875 5129216.37501263 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2129-May-17 21:30 < 00:01 Earth 0.241704723582688 0.241704506675348 0.241704940490372 27.8699499471276 27.8695544037552 2498798.396125258 0.0254338384620818 21.1735080244995 6.6400804489796 64.8699710847612 4932297.76072233 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2131-Mar-07 17:55 < 00:01 Jupiter 1.86705958706143 1.86705924557924 1.86705992854394 11.3253141756218 11.2851853347561 2499457.246693723 0.134352492519809 42.699574814663 7.99622441059687 -69.0036221397787 5688234.82642081 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2142-May-21 08:10 < 00:01 Earth 0.174616840788273 0.174616696606805 0.174616984970068 27.9023682009915 27.901821324291 2503549.839937902 0.0252176281752837 23.2018524834857 6.03712244279246 79.9626238552059 4269266.39093568 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2155-May-25 00:50 < 00:01 Earth 0.150781277526229 0.150781072519133 0.150781482534466 28.1813747144385 28.1807476566084 2508301.534972325 0.0264195263031562 26.840470470473 5.63386036935262 -71.0307557420578 3823044.86163922 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2166-Dec-13 09:43 < 00:01 Jupiter 1.97515067000348 1.97515019371007 1.97515114629713 11.2307014979005 11.1924517978085 2512521.904625304 0.161972920737958 45.1971351208401 3.69952888904207 -58.5580887713851 5944199.65678922 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2168-May-26 02:13 < 00:01 Earth 0.172604864240381 0.172604502706534 0.172605225775946 28.3357294319947 28.3351846420236 2513051.592576761 0.030613144373868 33.6224451459187 5.26576041091976 -58.7198380976496 4242764.89309999 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2181-May-29 16:14 < 00:01 Earth 0.237568096208966 0.237567501110481 0.237568691309032 28.8924349345391 28.8920467457285 2517803.176334248 0.0355006004123566 42.965151230891 5.64124719935168 -46.8424250962306 4562647.42119288 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
2194-Jun-02 22:14 < 00:01 Earth 0.334963564108903 0.334962799112851 0.33496432910644 29.8784075422741 29.8781413108741 2522555.426383412 0.0403123558202254 52.2582441463486 7.13415425958075 -43.6247338349402 4680775.76648253 T 257 CATAB v2.0f-lin.ifort 2021-Jan-19 05:27:55 2021-Jan-19 05:27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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