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20904 (2190 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2020904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1313856480041907 4.296e-08  
a 3.150087835519187 1.9605e-08 au
q 2.73621150397938 1.3209e-07 au
i 4.649639373329403 4.524e-06 deg
node 205.7636796609246 5.3047e-05 deg
peri 299.4339976175012 5.5768e-05 deg
M 175.8966156824604 1.922e-05 deg
tp 2458202.714002204681
(2018-Mar-25.21400220)
0.00010633 TDB
period 2042.125471332379
5.59
1.9065e-05
5.22e-08
d
yr
n .1762869153015945 1.6458e-09 deg/d
Q 3.563964167058994 2.2181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      919  
   data-arc span      21960 days (60.12 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:34:13  

Additional Information
 Earth MOID = 1.75185 au 
 Jupiter MOID = 1.47971 au 
 T_jup = 3.189 
[ 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 14.44   n/a E2021B10  
diameter diameter 6.029 km 0.298 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20904 (2190 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2190 P-L = 1996 FV3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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