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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1994681808895562 5.1148e-08  
a 2.549959904823925 1.0199e-08 au
q 2.041324041267391 1.3371e-07 au
i 5.026359372542169 4.1695e-06 deg
node 203.8909504586608 4.813e-05 deg
peri 229.455055517167 4.893e-05 deg
M 358.7211713519154 7.4636e-06 deg
tp 2459205.783336964985
(2020-Dec-22.28333696)
3.0826e-05 TDB
period 1487.299577033447
4.07
8.923e-06
2.443e-08
d
yr
n .2420494200086122 1.4522e-09 deg/d
Q 3.05859576838046 1.2233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1407  
   data-arc span      10776 days (29.50 yr)  
   first obs. used      1991-09-12  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50241  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:13:02  

Additional Information
 Earth MOID = 1.05964 au 
 Jupiter MOID = 2.24348 au 
 T_jup = 3.407 
[ 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 14.69   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

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