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97244 (1999 XL90)
Classification: Main-belt Asteroid          SPK-ID: 2097244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2703847285028106 4.4035e-08  
a 2.928282273756334 2.7916e-08 au
q 2.136519466187135 1.3669e-07 au
i 8.928388148577991 5.6371e-06 deg
node 93.18701421028929 3.2009e-05 deg
peri 284.9101139825869 3.4231e-05 deg
M 2.305318122878622 1.5099e-05 deg
tp 2458588.779498405298
(2019-Apr-15.27949841)
7.6685e-05 TDB
period 1830.281266701658
5.01
2.6173e-05
7.166e-08
d
yr
n .1966910805183262 2.8127e-09 deg/d
Q 3.720045081325533 3.5464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      408  
   data-arc span      8664 days (23.72 yr)  
   first obs. used      1994-11-27  
   last obs. used      2018-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54061  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:43:48  

Additional Information
 Earth MOID = 1.15912 au 
 Jupiter MOID = 1.82803 au 
 T_jup = 3.204 
[ 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 14.9   n/a MPO412727  
diameter diameter 5.059 km 0.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.100   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97244 (1999 XL90)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

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