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71441 (2000 AR226)
Classification: Main-belt Asteroid          SPK-ID: 2071441
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08011977225928373 5.4215e-08  
a 2.78497080740566 1.5995e-08 au
q 2.561839580567566 1.5421e-07 au
i 5.272333241929474 3.7584e-06 deg
node 107.8276590571968 6.1847e-05 deg
peri 276.7704790914382 6.6072e-05 deg
M 212.7045713301716 2.5472e-05 deg
tp 2459695.070230765421
(2022-Apr-25.57023077)
0.00012231 TDB
period 1697.576668424947
4.65
1.4625e-05
4.004e-08
d
yr
n .212067005099697 1.827e-09 deg/d
Q 3.008102034243755 1.7276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      817  
   data-arc span      10265 days (28.10 yr)  
   first obs. used      1992-05-03  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57001  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:39:49  

Additional Information
 Earth MOID = 1.57221 au 
 Jupiter MOID = 2.37149 au 
 T_jup = 3.321 
[ 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 15.1   n/a MPO290948  
diameter diameter 4.558 km 0.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.43 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
geometric albedo albedo 0.078   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71441 (2000 AR226)          Discovered 2000-Jan-13 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 AR226 = 1998 SP169 = 2001 FE158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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