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109980 (2001 SC55)
Classification: Main-belt Asteroid          SPK-ID: 2109980
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636247962832219 4.4963e-08  
a 3.089795238382368 1.9967e-08 au
q 2.584228121945184 1.4303e-07 au
i 12.16875829921479 5.1516e-06 deg
node 171.3317191410944 2.0636e-05 deg
peri 176.9384217618275 2.4604e-05 deg
M 178.7097896183948 1.3483e-05 deg
tp 2458015.720909019895
(2017-Sep-19.22090902)		 7.1801e-05 TDB
period 1983.777573180841
5.43		 1.9229e-05
5.265e-08		 d
yr
n .1814719577773866 1.759e-09 deg/d
Q 3.595362354819552 2.3234e-08 au
   Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      9032 days (24.73 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53092  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:39  

Additional Information
 Earth MOID = 1.57802 au 
 Jupiter MOID = 1.84631 au 
 T_jup = 3.170 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456957.5 (2014-Oct-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611620504802899 4.4909e-08  
q 2.59478735609504 1.4276e-07 au
tp 2456029.927240649378
(2012-Apr-12.42724065)		 7.2411e-05 TDB
node 171.3549002901151 2.0648e-05 deg
peri 176.994027047257 2.475e-05 deg
i 12.15838393339328 5.1474e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      690  
   data-arc span      9032 days (24.73 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53092  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:08:39  

Additional Information
 Jupiter MOID = 1.84631 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.016833307076566E-15 -6.368497366114977E-15 5.648276036715382E-13 1.137883599277335E-14 9.195926091087382E-14 4.690669408158534E-16
q -6.368497366114977E-15 2.037907827247079E-14 -1.869508302876307E-12 -3.265290163182153E-14 -2.852801720342931E-13 2.438556063547387E-16
tp 5.648276036715382E-13 -1.869508302876307E-12 5.243280955524471E-9 -1.060757201253045E-11 1.009175865639173E-9 -1.706320052737755E-12
node 1.137883599277335E-14 -3.265290163182153E-14 -1.060757201253045E-11 4.26341963506353E-10 -4.175183032679652E-10 1.510794022900727E-11
peri 9.195926091087382E-14 -2.852801720342931E-13 1.009175865639173E-9 -4.175183032679652E-10 6.125578066296798E-10 -1.480690650246676E-11
i 4.690669408158534E-16 2.438556063547387E-16 -1.706320052737755E-12 1.510794022900727E-11 -1.480690650246676E-11 2.649531379981051E-11

[ 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 14.7   n/a MPO432620  
diameter diameter 5.207 km 1.296 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.094   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109980 (2001 SC55)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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