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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .279547485749584 4.9636e-08  
a 2.672453742982623 1.5051e-08 au
q 1.925376018349766 1.3574e-07 au
i 27.76926351355231 5.5039e-06 deg
node 119.1099063330242 1.1407e-05 deg
peri 288.5772039922338 1.4334e-05 deg
M 110.2878147848111 9.5948e-06 deg
tp 2458511.635216329005
(2019-Jan-28.13521633)
4.0547e-05 TDB
period 1595.745844316029
4.37
1.3481e-05
3.691e-08
d
yr
n .2255998355140971 1.9059e-09 deg/d
Q 3.41953146761548 1.9259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1779  
   data-arc span      11354 days (31.09 yr)  
   first obs. used      1989-01-04  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 00:59:30  

Additional Information
 Earth MOID = 1.08998 au 
 Jupiter MOID = 2.30296 au 
 T_jup = 3.165 
[ 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 14.4   n/a MPO493562  
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

[ show close-approach data ]
Alternate Designations
 1989 BC1 = 1989 AC3 = 2001 VR98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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