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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05889288134503064 3.8109e-08  
a 2.998474218444232 2.2676e-08 au
q 2.821885432081262 1.1034e-07 au
i 9.969274160739268 4.6081e-06 deg
node 270.1775096868594 2.3985e-05 deg
peri 278.7829404664283 4.6211e-05 deg
M 164.3201925323298 3.9499e-05 deg
tp 2457734.859953364767
(2016-Dec-12.35995336)
0.00020805 TDB
period 1896.482787575671
5.19
2.1513e-05
5.89e-08
d
yr
n .1898250816503315 2.1533e-09 deg/d
Q 3.175063004807201 2.4011e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1246  
   data-arc span      7662 days (20.98 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-09-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49819  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:39:36  

Additional Information
 Earth MOID = 1.84356 au 
 Jupiter MOID = 1.92855 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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