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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995971271623435 5.1112e-08  
a 2.550319301932294 1.0232e-08 au
q 2.041282895919935 1.3366e-07 au
i 5.026283428917393 4.1668e-06 deg
node 203.8837396585937 4.8116e-05 deg
peri 229.4599019557591 4.8916e-05 deg
M 46.15308037426956 7.3854e-06 deg
tp 2459205.783417842890
(2020-Dec-22.28341784)
3.0803e-05 TDB
period 1487.614023154924
4.07
8.9528e-06
2.451e-08
d
yr
n .241998256534658 1.4564e-09 deg/d
Q 3.059355707944654 1.2275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1414  
   data-arc span      10803 days (29.58 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50357  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:01:03  

Additional Information
 Earth MOID = 1.05989 au 
 Jupiter MOID = 2.24349 au 
 T_jup = 3.407 
[ 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 14.69   n/a MPCxxxxx  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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