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30645 (6604 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2030645
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1889206158781429 3.8208e-08  
a 2.553383293765136 9.78e-09 au
q 2.070996549334065 1.0059e-07 au
i 2.946395804056232 3.9412e-06 deg
node 137.7705534143217 8.3787e-05 deg
peri 281.4538142647334 8.5022e-05 deg
M 238.5566784837986 1.6409e-05 deg
tp 2459703.240163170170
(2022-May-03.74016317)
6.9996e-05 TDB
period 1490.295690875981
4.08
8.5623e-06
2.344e-08
d
yr
n .2415628000564074 1.3879e-09 deg/d
Q 3.035770038196206 1.1628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1144  
   data-arc span      21823 days (59.75 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55726  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:38:52  

Additional Information
 Earth MOID = 1.08519 au 
 Jupiter MOID = 2.30682 au 
 T_jup = 3.412 
[ 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 15.2   n/a MPO337514  
diameter diameter 2.405 km 0.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.305   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

30645 (6604 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

Alternate Designations
 6604 P-L = 1997 WG51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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