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22224 (3270 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2022224
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331884403997766 3.054e-08  
a 2.391649612795912 8.5454e-09 au
q 2.073109530884895 7.224e-08 au
i 3.343569925392583 3.627e-06 deg
node 72.42452020623928 6.411e-05 deg
peri 66.46822739060669 6.5902e-05 deg
M 159.4202263404729 1.5814e-05 deg
tp 2458602.245907240384
(2019-Apr-28.74590724)
5.8362e-05 TDB
period 1350.967053161086
3.70
7.2405e-06
1.982e-08
d
yr
n .2664757805585615 1.4282e-09 deg/d
Q 2.71018969470693 9.6835e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1678  
   data-arc span      17133 days (46.91 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50194  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:40  

Additional Information
 Earth MOID = 1.0891 au 
 Jupiter MOID = 2.31096 au 
 T_jup = 3.517 
[ 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 14.8   n/a MPO333023  
diameter diameter 3.238 km 0.584 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22224 (3270 T-2)          Discovered 1973-Sep-30 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 3270 T-2 = 1997 AO21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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