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JPL Small-Body Database Browser
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71780 (2000 SM145)
Classification: Main-belt Asteroid          SPK-ID: 2071780
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09188255219287945 3.8418e-08  
a 2.167316710228172 9.2448e-09 au
q 1.968178119482132 8.4674e-08 au
i 3.330698016059767 6.8748e-06 deg
node 210.5618527474601 7.2218e-05 deg
peri 267.9199551116829 8.3149e-05 deg
M 203.1866252685994 4.2267e-05 deg
tp 2459108.147902986658
(2020-Sep-15.64790299)
0.00013818 TDB
period 1165.418736687657
3.19
7.4567e-06
2.042e-08
d
yr
n .3089018467501122 1.9765e-09 deg/d
Q 2.366455300974212 1.0094e-08 au
  Orbit Determination Parameters
   # obs. used (total)      517  
   data-arc span      7482 days (20.48 yr)  
   first obs. used      1997-11-23  
   last obs. used      2018-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61978  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:20:00  

Additional Information
 Earth MOID = .9879 au 
 Jupiter MOID = 2.69189 au 
 T_jup = 3.684 
[ 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 16.6   n/a MPO436284  

71780 (2000 SM145)          Discovered 2000-Sep-24 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 SM145 = 1997 WH15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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