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30626 (4240 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030626
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04403365828993987 4.0025e-08  
a 2.986425118294459 1.8111e-08 au
q 2.854921895126987 1.2399e-07 au
i 9.74936349878651 4.8482e-06 deg
node 357.8018624839573 2.2941e-05 deg
peri 237.012661765766 5.7164e-05 deg
M 48.50271989930332 5.0894e-05 deg
tp 2459142.525880124083
(2020-Oct-20.02588012)
0.00026698 TDB
period 1885.063009768313
5.16
1.7148e-05
4.695e-08
d
yr
n .1909750486506265 1.7373e-09 deg/d
Q 3.11792834146193 1.8909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      22184 days (60.74 yr)  
   first obs. used      1960-09-24  
   last obs. used      2021-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57211  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 19:49:26  

Additional Information
 Earth MOID = 1.85983 au 
 Jupiter MOID = 1.88918 au 
 T_jup = 3.234 
[ 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 14.40   n/a MPCxxxxx  
diameter diameter 4.249 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.246   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30626 (4240 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20011002/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4240 P-L = 1999 CO53 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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