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134679 (1999 XX4)
Classification: Main-belt Asteroid          SPK-ID: 2134679
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2262477280243764 4.4099e-08  
a 2.408147342511282 1.5239e-08 au
q 1.863309477520164 1.0246e-07 au
i 2.829983189772279 4.5756e-06 deg
node 172.0269629580071 9.7557e-05 deg
peri 169.9083298529053 9.8372e-05 deg
M 228.9812420910229 1.8262e-05 deg
tp 2459497.268429141715
(2021-Oct-09.76842914)
7.2902e-05 TDB
period 1364.96969857752
3.74
1.2957e-05
3.547e-08
d
yr
n .2637421185064899 2.5036e-09 deg/d
Q 2.952985207502399 1.8687e-08 au
  Orbit Determination Parameters
   # obs. used (total)      547  
   data-arc span      8488 days (23.24 yr)  
   first obs. used      1997-01-31  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57023  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:21:41  

Additional Information
 Earth MOID = .855285 au 
 Jupiter MOID = 2.45633 au 
 T_jup = 3.484 
[ 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 16.1   n/a MPO264221  
diameter diameter 1.534 km 0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134679 (1999 XX4)          Discovered 1999-Dec-04 by CSS at Catalina
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1999 XX4 = 2002 LD26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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