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101278 (1998 SS116)
Classification: Main-belt Asteroid          SPK-ID: 2101278
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2351306934895406 4.6038e-08  
a 2.572066669875537 1.2953e-08 au
q 1.967294850086369 1.2116e-07 au
i 4.282953914040767 5.8361e-06 deg
node 274.548515216855 5.54e-05 deg
peri 37.90998762753005 5.6609e-05 deg
M 133.4108894996568 1.3119e-05 deg
tp 2458442.144834423298
(2018-Nov-19.64483442)		 5.2275e-05 TDB
period 1506.682553136937
4.13		 1.1381e-05
3.116e-08		 d
yr
n .2389355337330179 1.8049e-09 deg/d
Q 3.176838489664706 1.5998e-08 au
   Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1996-01-13  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:26  

Additional Information
 Earth MOID = .955188 au 
 Jupiter MOID = 2.11749 au 
 T_jup = 3.386 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457054.5 (2015-Feb-01.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2366158068238363 4.5815e-08  
q 1.962455548116263 1.2061e-07 au
tp 2456936.894698274140
(2014-Oct-06.39469827)		 4.5924e-05 TDB
node 274.6708538204924 5.546e-05 deg
peri 37.9000135145418 5.6649e-05 deg
i 4.281820535703138 5.835e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      693  
   data-arc span      8860 days (24.26 yr)  
   first obs. used      1996-01-13  
   last obs. used      2020-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:26  

Additional Information
 Jupiter MOID = 2.11749 au 
 T_jup = 3.386 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.099031222128941E-15 -5.508580773359502E-15 -8.361826787650398E-13 1.479526289243719E-14 -2.356167975043781E-13 -9.530552982502487E-16
q -5.508580773359502E-15 1.454786835382344E-14 2.342845023991442E-12 -3.949706522014556E-14 6.530529362883518E-13 2.711861484403326E-15
tp -8.361826787650398E-13 2.342845023991442E-12 2.10900891720685E-9 -1.738002312141656E-11 5.428543762018646E-10 6.819929256376013E-13
node 1.479526289243719E-14 -3.949706522014556E-14 -1.738002312141656E-11 3.075774052057698E-9 -3.070813187517071E-9 2.771434439837952E-13
peri -2.356167975043781E-13 6.530529362883518E-13 5.428543762018646E-10 -3.070813187517071E-9 3.209081945074253E-9 -1.436218827723879E-13
i -9.530552982502487E-16 2.711861484403326E-15 6.819929256376013E-13 2.771434439837952E-13 -1.436218827723879E-13 3.404775711165242E-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 15.4   n/a MPO359463  
diameter diameter 4.829 km 0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101278 (1998 SS116)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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