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18203 (2837 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2018203
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09292153207478555 3.3083e-08  
a 2.53577238562689 8.952e-09 au
q 2.300144530561505 8.3148e-08 au
i 3.047368089806608 4.0644e-06 deg
node 197.1587881124187 5.9092e-05 deg
peri 326.27071502277 6.2724e-05 deg
M 176.8886092150258 2.1708e-05 deg
tp 2458475.795103664530
(2018-Dec-23.29510366)
8.7508e-05 TDB
period 1474.904256630944
4.04
7.8103e-06
2.138e-08
d
yr
n .2440836402644409 1.2925e-09 deg/d
Q 2.771400240692274 9.7839e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1416  
   data-arc span      21990 days (60.21 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54912  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:37:12  

Additional Information
 Earth MOID = 1.30805 au 
 Jupiter MOID = 2.2037 au 
 T_jup = 3.440 
[ 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 15.09   n/a E2021B10  
diameter diameter 2.466 km 0.408 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.318   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18203 (2837 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2837 P-L = 1999 JY26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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