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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636247953880653 4.5359e-08  
a 3.089795238830648 2.0169e-08 au
q 2.584228125085965 1.4454e-07 au
i 12.1687587594733 5.1773e-06 deg
node 171.3317223739861 2.1224e-05 deg
peri 176.9384181676374 2.5375e-05 deg
M 178.7097898673251 1.371e-05 deg
tp 2458015.720907433852
(2017-Sep-19.22090743)
7.3363e-05 TDB
period 1983.777573612564
5.43
1.9424e-05
5.318e-08
d
yr
n .1814719577378935 1.7768e-09 deg/d
Q 3.595362352575331 2.3469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5272  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:53  

Additional Information
 Earth MOID = 1.57802 au 
 Jupiter MOID = 1.84631 au 
 T_jup = 3.170 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456888.5 (2014-Aug-19.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607883202181832 4.5337e-08  
q 2.596789842620862 1.4451e-07 au
tp 2456029.598813124868
(2012-Apr-12.09881312)
7.5014e-05 TDB
node 171.3609151772129 2.1245e-05 deg
peri 177.0120724709991 2.5555e-05 deg
i 12.1541436387649 5.1714e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1995-08-29  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5272  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:36:53  

Additional Information
 Jupiter MOID = 1.84631 au 
 T_jup = 3.170 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.055452972605136E-15 -6.508388059539812E-15 6.861168308032604E-13 1.2925396210739E-14 1.157955196595587E-13 6.376174022047575E-16
q -6.508388059539812E-15 2.088329644977729E-14 -2.304321575470521E-12 -3.898444183376527E-14 -3.701920444115203E-13 -5.684508290175751E-16
tp 6.861168308032604E-13 -2.304321575470521E-12 5.62715668606901E-9 -1.07976590870127E-11 1.088345563267212E-9 -1.727318087177564E-12
node 1.2925396210739E-14 -3.898444183376527E-14 -1.07976590870127E-11 4.51345851135262E-10 -4.421563226683741E-10 1.762060465651605E-11
peri 1.157955196595587E-13 -3.701920444115203E-13 1.088345563267212E-9 -4.421563226683741E-10 6.530600867621086E-10 -1.729862161739574E-11
i 6.376174022047575E-16 -5.684508290175751E-16 -1.727318087177564E-12 1.762060465651605E-11 -1.729862161739574E-11 2.674303431336021E-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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