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46646 (1995 OC8)
Classification: Main-belt Asteroid          SPK-ID: 2046646
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1916697457245796 3.24e-08  
a 2.246803105451467 7.1611e-09 au
q 1.816158925536388 7.356e-08 au
i 3.936507796748616 4.0475e-06 deg
node 192.9016752289011 6.1603e-05 deg
peri 109.8550971884885 6.3077e-05 deg
M 141.0303236608851 1.3013e-05 deg
tp 2458518.601081195866
(2019-Feb-04.10108120)
4.3624e-05 TDB
period 1230.115667795239
3.37
5.881e-06
1.61e-08
d
yr
n .2926554058491388 1.3991e-09 deg/d
Q 2.677447285366546 8.5337e-09 au
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      8982 days (24.59 yr)  
   first obs. used      1995-06-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52107  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:32:04  

Additional Information
 Earth MOID = .805635 au 
 Jupiter MOID = 2.56069 au 
 T_jup = 3.603 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456872.5 (2014-Aug-03.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917412785361336 3.228e-08  
q 1.81573002089447 7.3213e-08 au
tp 2457289.357622964151
(2015-Sep-23.85762296)
4.2058e-05 TDB
node 192.9229379126852 6.1584e-05 deg
peri 109.9579645370652 6.3066e-05 deg
i 3.936860448408183 4.0485e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      8982 days (24.59 yr)  
   first obs. used      1995-06-24  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52107  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:32:04  

Additional Information
 Jupiter MOID = 2.56069 au 
 T_jup = 3.603 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.042027526179722E-15 -2.356041459073539E-15 -3.789020226075715E-13 5.321587668367232E-15 -1.220865199892974E-13 -2.56939401486349E-15
q -2.356041459073539E-15 5.360208446466973E-15 8.978612600409035E-13 -1.103689848456734E-14 2.83279414966109E-13 6.088633017871986E-15
tp -3.789020226075715E-13 8.978612600409035E-13 1.76889162077649E-9 -7.043529023846071E-12 5.85773125176297E-10 4.522242756449433E-12
node 5.321587668367232E-15 -1.103689848456734E-14 -7.043529023846071E-12 3.792634260689932E-9 -3.785550439216514E-9 5.666079786151833E-11
peri -1.220865199892974E-13 2.83279414966109E-13 5.85773125176297E-10 -3.785550439216514E-9 3.977293302029366E-9 -5.513378107390952E-11
i -2.56939401486349E-15 6.088633017871986E-15 4.522242756449433E-12 5.666079786151833E-11 -5.513378107390952E-11 1.639012780562147E-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 15.7   n/a MPO502466  
diameter diameter 2.979 km 0.359 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46646 (1995 OC8)          Discovered 1995-Jul-25 by Spacewatch at Kitt Peak
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1995 OC8 = 1998 HT100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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