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22228 (5081 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2022228
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05230273475759521 3.9376e-08  
a 2.636784211340744 1.1887e-08 au
q 2.498873186121975 1.0318e-07 au
i 14.59446977427261 4.3422e-06 deg
node 210.505167776843 1.375e-05 deg
peri 322.9111161191717 3.887e-05 deg
M 202.30078624612 3.8512e-05 deg
tp 2459885.573768151298
(2022-Nov-02.07376815)
0.0001688 TDB
period 1563.904794854436
4.28
1.0576e-05
2.896e-08
d
yr
n .230193040640628 1.5567e-09 deg/d
Q 2.774695236559515 1.2509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      17301 days (47.37 yr)  
   first obs. used      1973-09-20  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:41  

Additional Information
 Earth MOID = 1.50996 au 
 Jupiter MOID = 2.21132 au 
 T_jup = 3.349 
[ 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 14.56   n/a E2021B10  
diameter diameter 3.240 km 0.342 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.321   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22228 (5081 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 5081 T-2 = 1999 UP15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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