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1827 Atkinson (1962 RK)
Classification: Main-belt Asteroid          SPK-ID: 2001827
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1802850400271331 3.0565e-08  
a 2.707652293496684 8.1057e-09 au
q 2.219503091384075 8.5178e-08 au
i 4.520090158920366 3.8786e-06 deg
node 220.4734926166412 4.2455e-05 deg
peri 240.3405645568965 4.3888e-05 deg
M 307.9171119212805 1.1923e-05 deg
tp 2459435.940040797881
(2021-Aug-09.44004080)
5.4328e-05 TDB
period 1627.375474246571
4.46
7.3076e-06
2.001e-08
d
yr
n .221215082626626 9.9335e-10 deg/d
Q 3.195801495609293 9.567e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2828  
   data-arc span      32586 days (89.22 yr)  
   first obs. used      1931-10-31  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40893  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:58:26  

Additional Information
 Earth MOID = 1.24029 au 
 Jupiter MOID = 1.9919 au 
 T_jup = 3.336 
[ 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 12.26   n/a E2021B10  
diameter diameter 8.855 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.757 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Janek, T.; et al. (2013) Minor Planet Bull. 40, 154-156.]
geometric albedo albedo 0.249   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
B-V BV 0.807   0.120 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.63, mean=5.88, max.=6.12) deg.
Tholen spectral type spec_T DU   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 1 color indices

1827 Atkinson (1962 RK)          Discovered 1962-Sep-07 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1962 RK = 1931 VC = 1955 FL = 1967 TL = 1973 EQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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