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101245 (1998 SD84)
Classification: Main-belt Asteroid          SPK-ID: 2101245
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1116071125663303 5.2816e-08  
a 2.548670765563031 1.168e-08 au
q 2.264220980536323 1.3587e-07 au
i 7.96438229157147 5.8568e-06 deg
node 170.6408108293952 2.8066e-05 deg
peri 129.2561101899848 3.5338e-05 deg
M 169.7118275920953 2.0315e-05 deg
tp 2458299.886272317084
(2018-Jun-30.38627232)
8.2821e-05 TDB
period 1486.171856990816
4.07
1.0216e-05
2.797e-08
d
yr
n .2422330891993365 1.6651e-09 deg/d
Q 2.83312055058974 1.2983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      646  
   data-arc span      7800 days (21.36 yr)  
   first obs. used      1998-09-16  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:17:40  

Additional Information
 Earth MOID = 1.25893 au 
 Jupiter MOID = 2.39133 au 
 T_jup = 3.419 
[ 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 15.8   n/a MPO410655  
diameter diameter 1.923 km 0.333 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101245 (1998 SD84)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SD84 = 2002 RZ78 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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