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JPL Small-Body Database Browser
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39391 (4885 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2039391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2054481637335379 3.7124e-08  
a 2.353477225607786 1.0732e-08 au
q 1.869959651217965 8.8155e-08 au
i 4.346929414934376 5.7441e-06 deg
node 2.231062678763263 4.9094e-05 deg
peri 292.5569370538424 5.0882e-05 deg
M 236.9253316136467 1.4496e-05 deg
tp 2459451.347432133834
(2021-Aug-24.84743213)
5.4316e-05 TDB
period 1318.752897701709
3.61
9.0206e-06
2.47e-08
d
yr
n .2729851821576273 1.8673e-09 deg/d
Q 2.836994799997607 1.2937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      21680 days (59.36 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58269  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:12:05  

Additional Information
 Earth MOID = .859399 au 
 Jupiter MOID = 2.38183 au 
 T_jup = 3.524 
[ 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 15.8   n/a MPO395374  
diameter diameter 1.291 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.463   0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

39391 (4885 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4885 P-L = 2000 UY70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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