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22246 (4380 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2022246
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 .1018982894197775 4.357e-08  
a 2.70851363560448 1.4397e-08 au
q 2.432520729266241 1.2178e-07 au
i 5.241843458956116 4.4118e-06 deg
node 70.13849420942998 4.621e-05 deg
peri 345.413501221485 5.0384e-05 deg
M 219.717725568016 2.1527e-05 deg
tp 2459834.946877321490
(2022-Sep-12.44687732)
0.00010002 TDB
period 1628.152072387996
4.46
1.2981e-05
3.554e-08
d
yr
n .2211095671622315 1.7629e-09 deg/d
Q 2.984506541942719 1.5864e-08 au
  Orbit Determination Parameters
   # obs. used (total)      929  
   data-arc span      15592 days (42.69 yr)  
   first obs. used      1977-10-16  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53277  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:48  

Additional Information
 Earth MOID = 1.44397 au 
 Jupiter MOID = 2.31983 au 
 T_jup = 3.351 
[ 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 3.068 km 0.498 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.206   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22246 (4380 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4380 T-3 = 1998 LX = 1999 RQ227 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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