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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2798284460726718 4.5307e-08  
a 2.671682228130081 1.4189e-08 au
q 1.924069541832467 1.2318e-07 au
i 27.76945046144918 4.3599e-06 deg
node 119.1086627697878 1.051e-05 deg
peri 288.5243829374126 1.2542e-05 deg
M 199.7212469963031 9.6799e-06 deg
tp 2460106.648351669470
(2023-Jun-11.14835167)
4.6844e-05 TDB
period 1595.054876644271
4.37
1.2707e-05
3.479e-08
d
yr
n .2256975639342139 1.798e-09 deg/d
Q 3.419294914427696 1.8159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2093  
   data-arc span      11853 days (32.45 yr)  
   first obs. used      1989-01-04  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:00:49  

Additional Information
 Earth MOID = 1.08884 au 
 Jupiter MOID = 2.30513 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457771.5 (2017-Jan-18.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2789932011417635 4.5267e-08  
q 1.927148506064951 1.2301e-07 au
tp 2458512.095009452593
(2019-Jan-28.59500945)
3.8693e-05 TDB
node 119.1225572366594 1.0509e-05 deg
peri 288.6611898130002 1.256e-05 deg
i 27.76282288165621 4.3594e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2093  
   data-arc span      11853 days (32.45 yr)  
   first obs. used      1989-01-04  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:00:49  

Additional Information
 Jupiter MOID = 2.30513 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.049143293353666E-15 -5.549734984598057E-15 -3.430851612521742E-15 2.324357042310822E-15 -3.575871247448025E-14 2.28780893057598E-15
q -5.549734984598057E-15 1.51318143923913E-14 2.253704983918248E-13 -6.803464051551283E-15 1.245612627152995E-13 -5.292172866518482E-15
tp -3.430851612521742E-15 2.253704983918248E-13 1.497145255778181E-9 -2.305068464324869E-13 2.91931664743169E-10 1.635502505893406E-13
node 2.324357042310822E-15 -6.803464051551283E-15 -2.305068464324869E-13 1.104318268600959E-10 -9.772633176904097E-11 -4.793240539954187E-12
peri -3.575871247448025E-14 1.245612627152995E-13 2.91931664743169E-10 -9.772633176904097E-11 1.577583985850913E-10 4.115102361442527E-12
i 2.28780893057598E-15 -5.292172866518482E-15 1.635502505893406E-13 -4.793240539954187E-12 4.115102361442527E-12 1.900405047974728E-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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