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22204 (6121 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2022204
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815080899880691 4.2285e-08  
a 3.164118256014879 1.9121e-08 au
q 2.589805194869238 1.3508e-07 au
i .1431627548505585 4.3684e-06 deg
node 262.9682751898079 0.0019017 deg
peri 155.7454316816678 0.0019017 deg
M 209.0013703129605 1.6722e-05 deg
tp 2460062.779362402240
(2023-Apr-28.27936240)
0.00010114 TDB
period 2055.784023392701
5.63
1.8635e-05
5.102e-08
d
yr
n .1751156716384462 1.5874e-09 deg/d
Q 3.738431317160521 2.2592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      21847 days (59.81 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-07-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53432  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:30  

Additional Information
 Earth MOID = 1.60149 au 
 Jupiter MOID = 1.61099 au 
 T_jup = 3.178 
[ 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 14.27   n/a E2021B10  
diameter diameter 8.556 km 0.405 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.042   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22204 (6121 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 6121 P-L = 2000 WX56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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