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42838 (1999 PP3)
Classification: Main-belt Asteroid          SPK-ID: 2042838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1993227673763582 5.1368e-08  
a 2.549539071261896 1.1081e-08 au
q 2.041357888043825 1.3439e-07 au
i 5.026639028145143 4.6201e-06 deg
node 203.8916816218669 5.0581e-05 deg
peri 229.4580273630802 5.138e-05 deg
M 310.2943978692419 8.8287e-06 deg
tp 2459205.802280267584
(2020-Dec-22.30228027)
3.6442e-05 TDB
period 1486.931406683332
4.07
9.6938e-06
2.654e-08
d
yr
n .2421093524434973 1.5784e-09 deg/d
Q 3.057720254479967 1.3289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1152  
   data-arc span      10640 days (29.13 yr)  
   first obs. used      1991-09-12  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53321  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:05:07  

Additional Information
 Earth MOID = 1.06018 au 
 Jupiter MOID = 2.24384 au 
 T_jup = 3.408 
[ 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 14.5   n/a MPO431983  
diameter diameter 3.508 km 0.739 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.300   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

42838 (1999 PP3)          Discovered 1999-Aug-13 by Pravec, P., Kusnirak, P. at Ondrejov
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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