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10094 Eijikato (1991 DK)
Classification: Main-belt Asteroid          SPK-ID: 2010094
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1454821707287579 3.6142e-08  
a 2.577677270707516 1.0384e-08 au
q 2.202671185926806 8.8725e-08 au
i 15.67590873712375 9.6148e-07 deg
node 356.9914631088718 7.856e-07 deg
peri 20.36337853278529 7.9721e-06 deg
M 216.2275634616181 1.3543e-05 deg
tp 2459804.190542328515
(2022-Aug-12.69054233)
5.9682e-05 TDB
period 1511.615164011265
4.14
9.1339e-06
2.501e-08
d
yr
n .238155853798591 1.4391e-09 deg/d
Q 2.952683355488225 1.1894e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2315  
   data-arc span      17661 days (48.35 yr)  
   first obs. used      1972-10-06  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:51:06  

Additional Information
 Earth MOID = 1.20663 au 
 Jupiter MOID = 2.53055 au 
 T_jup = 3.360 
[ 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 12.16   n/a E2021B10  
diameter diameter 9.507 km 0.301 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 7.66 h n/a LCDB (Rev. 2020-October); 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:
[Krotz, J.; Albers, K.; Carbo, L.; Kragh, K.; et al. (2010) Minor Planet Bull. 37, 99-101.]
geometric albedo albedo 0.310   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

10094 Eijikato           Discovered 1991 Feb. 20 by T. Seki at Geisei.
Eiji Kato (b. 1942), together with his wife Naomi, runs a bed and breakfast in Australia and introduces their guests to the wonders of the night sky from their in-house observatory. He also translates Comet hunter Seki's webpage into English to reach wider audiences outside Japan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

[ show close-approach data ]
Alternate Designations
 1991 DK = 1951 PQ = 1972 TD5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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