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JPL Small-Body Database Browser
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161995 (1983 LB)
Classification: Amor [NEO]          SPK-ID: 2161995
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .478791507843448 8.5077e-08  
a 2.287093453961863 1.2938e-08 au
q 1.192052530560583 1.9838e-07 au
i 25.2737094993081 1.5569e-05 deg
node 81.19179314151029 2.5568e-05 deg
peri 220.6605730213264 4.6431e-05 deg
M 119.0131284298219 3.9412e-05 deg
tp 2458182.845982042538
(2018-Mar-05.34598204)
0.00013539 TDB
period 1263.351770080945
3.46
1.072e-05
2.935e-08
d
yr
n .2849562635883545 2.4179e-09 deg/d
Q 3.382134377363142 1.9132e-08 au
  Orbit Determination Parameters
   # obs. used (total)      137  
   data-arc span      12991 days (35.57 yr)  
   first obs. used      1983-06-13  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .70671  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jan-26 10:13:01  

Additional Information
 Earth MOID = .245798 au 
 Jupiter MOID = 2.06337 au 
 T_jup = 3.328 
[ 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 17.2   n/a MPO299862  

161995 (1983 LB)          Discovered 1983-Jun-13 by Swann, S. R., Helin, E. F. at Palomar
Reference: 20070926/Numbers.arcLast Updated: 2007-09-30

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