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26428 (1999 XR169)
Classification: Main-belt Asteroid          SPK-ID: 2026428
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09066815108587238 3.4791e-08  
a 2.451547182639772 1.0499e-08 au
q 2.229269932290044 8.3298e-08 au
i 11.17300980952078 3.8851e-06 deg
node 281.6998329725467 2.3756e-05 deg
peri 198.536654850953 3.7017e-05 deg
M 93.50537367610566 2.8994e-05 deg
tp 2458636.339463319342
(2019-Jun-01.83946332)
0.00011216 TDB
period 1402.034856939325
3.84
9.0063e-06
2.466e-08
d
yr
n .2567696503536926 1.6494e-09 deg/d
Q 2.6738244329895 1.1451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1695  
   data-arc span      11957 days (32.74 yr)  
   first obs. used      1987-09-22  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45361  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:27:28  

Additional Information
 Earth MOID = 1.24816 au 
 Jupiter MOID = 2.43776 au 
 T_jup = 3.464 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO468036  
diameter diameter 7.010 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26428 (1999 XR169)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XR169 = 1987 SB14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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