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22719 Nakadori (1998 SH25)
Classification: Main-belt Asteroid          SPK-ID: 2022719
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02100219822891183 1.4218e-08  
a 2.742585895553879 1.1109e-08 au
q 2.684985562915639 3.8752e-08 au
i 6.32819791778881 1.0077e-06 deg
node 71.70301451750949 4.6202e-06 deg
peri 208.292704961446 6.3655e-05 deg
M 58.54570790662167 6.0404e-05 deg
tp 2458930.706585204932
(2020-Mar-22.20658520)
0.0002787 TDB
period 1658.970961306613
4.54
1.008e-05
2.76e-08
d
yr
n .2170019900266743 1.3185e-09 deg/d
Q 2.800186228192119 1.1342e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2262  
   data-arc span      10926 days (29.91 yr)  
   first obs. used      1991-02-05  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .503  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:10:25  

Additional Information
 Earth MOID = 1.66855 au 
 Jupiter MOID = 2.21058 au 
 T_jup = 3.340 
[ 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 13.1   n/a MPO474064  
diameter diameter 13.324 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22719 Nakadori           Discovered 1998 Sept. 22 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Nakadori is the central part of Fukushima prefecture, Japan, and is located between the Ou Mountains and Abukuma highland. Nakadori's capital is Fukushima. The region also contains the important transportation center of Koriyama.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1998 SH25 = 1997 MZ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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