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100012 (1989 BC1)
Classification: Main-belt Asteroid          SPK-ID: 2100012
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2796947578014515 4.5853e-08  
a 2.671971078603682 1.4315e-08 au
q 1.924634774921142 1.2446e-07 au
i 27.76930000566662 4.9793e-06 deg
node 119.1094916319761 1.083e-05 deg
peri 288.5453590515429 1.3581e-05 deg
M 155.4517163559894 9.7634e-06 deg
tp 2458511.627136439076
(2019-Jan-28.12713644)
4.0255e-05 TDB
period 1595.313559060474
4.37
1.282e-05
3.51e-08
d
yr
n .2256609667456311 1.8134e-09 deg/d
Q 3.419307382286222 1.8319e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2039  
   data-arc span      11762 days (32.20 yr)  
   first obs. used      1989-01-04  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:30:54  

Additional Information
 Earth MOID = 1.08906 au 
 Jupiter MOID = 2.30406 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2783524829507354 4.5795e-08  
q 1.929984604272834 1.243e-07 au
tp 2456915.753405620907
(2014-Sep-15.25340562)
3.6129e-05 TDB
node 119.1658916327016 1.0824e-05 deg
peri 288.6918395308126 1.3614e-05 deg
i 27.76272393798551 4.979e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2039  
   data-arc span      11762 days (32.20 yr)  
   first obs. used      1989-01-04  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34917  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:30:54  

Additional Information
 Jupiter MOID = 2.30406 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.097208771096531E-15 -5.673101282142491E-15 1.782418514966582E-15 -1.932819778547225E-15 -6.266383958106288E-14 -5.907844439015599E-16
q -5.673101282142491E-15 1.545017515551204E-14 6.228279055242322E-14 5.378312687769216E-15 1.887082958086908E-13 1.661528014679487E-15
tp 1.782418514966582E-15 6.228279055242322E-14 1.305336328968186E-9 -6.371995686136589E-13 3.208260132097075E-10 -1.494637522721335E-12
node -1.932819778547225E-15 5.378312687769216E-15 -6.371995686136589E-13 1.171604649041176E-10 -1.037433067014729E-10 1.408625484287362E-12
peri -6.266383958106288E-14 1.887082958086908E-13 3.208260132097075E-10 -1.037433067014729E-10 1.853544793248509E-10 -1.572220819824537E-12
i -5.907844439015599E-16 1.661528014679487E-15 -1.494637522721335E-12 1.408625484287362E-12 -1.572220819824537E-12 2.479016302126544E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.29   n/a E2021B55  
diameter diameter 6.154 km 1.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.032   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

100012 (1989 BC1)          Discovered 1989-Jan-25 by Mrkos, A. at Klet
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1989 BC1 = 1989 AC3 = 2001 VR98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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