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146545 (2001 SC278)
Classification: Main-belt Asteroid          SPK-ID: 2146545
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1758156478209623 3.7406e-08  
a 2.755871864296559 1.362e-08 au
q 2.271346467163696 1.0653e-07 au
i 6.609901751933571 4.4901e-06 deg
node 283.0180073031217 4.1246e-05 deg
peri 112.1449455024687 4.4225e-05 deg
M 24.03833796891702 1.4308e-05 deg
tp 2458888.919348097993
(2020-Feb-09.41934810)
6.6337e-05 TDB
period 1671.04043285619
4.58
1.2388e-05
3.392e-08
d
yr
n .2154346435440092 1.5971e-09 deg/d
Q 3.240397261429421 1.6015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      615  
   data-arc span      6668 days (18.26 yr)  
   first obs. used      2001-08-25  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55933  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:37:00  

Additional Information
 Earth MOID = 1.28841 au 
 Jupiter MOID = 2.22694 au 
 T_jup = 3.311 
[ 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 15.5   n/a MPO493833  
diameter diameter 3.920 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.096   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146545 (2001 SC278)          Discovered 2001-Sep-21 by LONEOS at Anderson Mesa
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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