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71061 (1999 XS98)
Classification: Main-belt Asteroid          SPK-ID: 2071061
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05848689943583595 3.6805e-08  
a 2.999674433299066 2.0902e-08 au
q 2.824232776378456 1.0829e-07 au
i 9.969202227254769 4.1203e-06 deg
node 270.1775376769236 2.3294e-05 deg
peri 278.6444928470783 4.2816e-05 deg
M 240.3645256864327 3.7127e-05 deg
tp 2459631.119047439470
(2022-Feb-20.61904744)
0.00019725 TDB
period 1897.621574042303
5.20
1.9834e-05
5.43e-08
d
yr
n .1897111652420403 1.9829e-09 deg/d
Q 3.175116090219677 2.2125e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1483  
   data-arc span      7802 days (21.36 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47652  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:20:16  

Additional Information
 Earth MOID = 1.84564 au 
 Jupiter MOID = 1.92783 au 
 T_jup = 3.228 
[ 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 13.6   n/a MPO359239  
diameter diameter 7.217 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71061 (1999 XS98)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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