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JPL Small-Body Database Browser
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172045 (2001 XR22)
Classification: Main-belt Asteroid          SPK-ID: 2172045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13739098158881 8.4171e-08  
a 3.161108908376365 4.0219e-08 au
q 2.726801052545405 2.737e-07 au
i 12.30988419376138 9.8078e-06 deg
node 301.6211625393526 4.024e-05 deg
peri 176.2473795559077 5.8429e-05 deg
M 77.95287051151554 4.0942e-05 deg
tp 2458555.984175466249
(2019-Mar-13.48417547)
0.00022929 TDB
period 2052.851880656666
5.62
3.9178e-05
1.073e-07
d
yr
n .175365793992328 3.3468e-09 deg/d
Q 3.595416764207325 4.5745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      6298 days (17.24 yr)  
   first obs. used      2001-12-07  
   last obs. used      2019-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:20:07  

Additional Information
 Earth MOID = 1.74306 au 
 Jupiter MOID = 1.50986 au 
 T_jup = 3.155 
[ 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 MPO280918  
diameter diameter 5.822 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172045 (2001 XR22)          Discovered 2001-Dec-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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