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18900 (2000 LD12)
Classification: Main-belt Asteroid          SPK-ID: 2018900
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153303569650485 3.6947e-08  
a 3.101371836737499 2.1494e-08 au
q 2.625920463352159 1.1527e-07 au
i 16.41759362379447 4.2905e-06 deg
node 259.7197218976264 1.5116e-05 deg
peri 9.653960300328732 2.4069e-05 deg
M 257.0264561622827 2.2842e-05 deg
tp 2459571.127034800855
(2021-Dec-22.62703480)
0.0001301 TDB
period 1994.936999080576
5.46
2.0739e-05
5.678e-08
d
yr
n .1804568265393425 1.876e-09 deg/d
Q 3.576823210122838 2.4789e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1545  
   data-arc span      25135 days (68.82 yr)  
   first obs. used      1951-07-06  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44948  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:54:49  

Additional Information
 Earth MOID = 1.61137 au 
 Jupiter MOID = 1.52803 au 
 T_jup = 3.141 
[ 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 12.9   n/a MPO435875  
diameter diameter 7.816 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18900 (2000 LD12)          Discovered 2000-Jun-04 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

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