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JPL Small-Body Database Browser
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39668 (1995 YR5)
Classification: Main-belt Asteroid          SPK-ID: 2039668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07218285560565617 4.2044e-08  
a 2.762898519417635 1.8344e-08 au
q 2.56346461453743 1.1572e-07 au
i 6.393622128500788 4.4542e-06 deg
node 80.14845817031231 4.0473e-05 deg
peri 263.2335259508899 5.2024e-05 deg
M 188.2644459717347 3.4304e-05 deg
tp 2459800.709203604432
(2022-Aug-09.20920360)
0.00016145 TDB
period 1677.435490441208
4.59
1.6706e-05
4.574e-08
d
yr
n .2146133201851542 2.1373e-09 deg/d
Q 2.962332424297839 1.9668e-08 au
  Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      9868 days (27.02 yr)  
   first obs. used      1993-04-22  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55986  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 08:45:04  

Additional Information
 Earth MOID = 1.5652 au 
 Jupiter MOID = 2.32278 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO417091  

39668 (1995 YR5)          Discovered 1995-Dec-16 by Spacewatch at Kitt Peak
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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