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129810 (1999 LD26)
Classification: Main-belt Asteroid          SPK-ID: 2129810
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2408867057698681 3.601e-08  
a 2.286126388853019 9.9732e-09 au
q 1.735428934068651 8.1383e-08 au
i 12.70371959587631 4.3299e-06 deg
node 95.03902439598764 2.457e-05 deg
peri 177.9863210297283 2.7386e-05 deg
M 16.59200161097197 1.3623e-05 deg
tp 2458942.310441451696
(2020-Apr-02.81044145)
4.7582e-05 TDB
period 1262.550569157175
3.46
8.2618e-06
2.262e-08
d
yr
n .2851370937485068 1.8659e-09 deg/d
Q 2.836823843637388 1.2376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      503  
   data-arc span      7722 days (21.14 yr)  
   first obs. used      1999-06-09  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:44  

Additional Information
 Earth MOID = .719167 au 
 Jupiter MOID = 2.29025 au 
 T_jup = 3.531 
[ 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 16.2   n/a MPO432776  
diameter diameter 2.297 km 0.235 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.116   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129810 (1999 LD26)          Discovered 1999-Jun-09 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 LD26 = 2002 FE30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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