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134690 (1999 XP61)
Classification: Outer Main-belt Asteroid          SPK-ID: 2134690
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2510266018088691 4.6458e-08  
a 4.0052332097003 4.5404e-08 au
q 2.999813127617204 1.8421e-07 au
i 2.847657024345921 5.6925e-06 deg
node 190.9715201872945 0.00010502 deg
peri 185.201495162127 0.00010565 deg
M 234.1814621873784 1.247e-05 deg
tp 2460023.751223524682
(2023-Mar-20.25122352)
0.00011356 TDB
period 2927.79145961377
8.02
4.9785e-05
1.363e-07
d
yr
n .1229595771986748 2.0908e-09 deg/d
Q 5.010653291783396 5.6802e-08 au
  Orbit Determination Parameters
   # obs. used (total)      604  
   data-arc span      10372 days (28.40 yr)  
   first obs. used      1991-12-04  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:22:20  

Additional Information
 Earth MOID = 2.00136 au 
 Jupiter MOID = .460048 au 
 T_jup = 2.996 
[ 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 14.1   n/a MPO469413  
diameter diameter 9.922 km 0.962 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.045   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

134690 (1999 XP61)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 XP61 = 2002 FW27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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