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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05825326001696415 3.2569e-08  
a 3.000452616238824 1.8524e-08 au
q 2.825666469816483 9.9773e-08 au
i 9.967282035873314 4.0733e-06 deg
node 270.17490550145 2.0918e-05 deg
peri 278.3709583655992 4.1223e-05 deg
M 315.722622807836 3.6481e-05 deg
tp 2459629.984455554559
(2022-Feb-19.48445555)
0.00019276 TDB
period 1898.360050434896
5.20
1.758e-05
4.813e-08
d
yr
n .1896373661664063 1.7562e-09 deg/d
Q 3.175238762661164 1.9603e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1710  
   data-arc span      8288 days (22.69 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-05-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:39:19  

Additional Information
 Earth MOID = 1.84792 au 
 Jupiter MOID = 1.92577 au 
 T_jup = 3.227 
[ 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 13.66   n/a MPCxxxxx  
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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