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30879 Hiroshikanai (1992 KF)
Classification: Main-belt Asteroid          SPK-ID: 2030879
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1268156470930158 4.868e-08  
a 2.57676538942572 1.2866e-08 au
q 2.24999121915881 1.3007e-07 au
i 15.18995226323133 4.2785e-06 deg
node 66.03639205070257 1.5209e-05 deg
peri 173.0035003919126 3.2187e-05 deg
M 280.6563165566058 3.4838e-05 deg
tp 2459333.481880856399
(2021-Apr-28.98188086)
0.0001477 TDB
period 1510.813109575692
4.14
1.1315e-05
3.098e-08
d
yr
n .2382822850280305 1.7846e-09 deg/d
Q 2.903539559692629 1.4497e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1984  
   data-arc span      16008 days (43.83 yr)  
   first obs. used      1976-08-20  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:53:50  

Additional Information
 Earth MOID = 1.23798 au 
 Jupiter MOID = 2.11369 au 
 T_jup = 3.367 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456958.5 (2014-Oct-28.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1277597458268405 4.8466e-08  
q 2.246762948775888 1.2952e-07 au
tp 2456312.534271380530
(2013-Jan-20.03427138)
0.00013484 TDB
node 66.09363439870411 1.5215e-05 deg
peri 173.0181210667342 3.2114e-05 deg
i 15.18938756982031 4.2783e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1984  
   data-arc span      16008 days (43.83 yr)  
   first obs. used      1976-08-20  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47634  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 19:53:50  

Additional Information
 Jupiter MOID = 2.11369 au 
 T_jup = 3.367 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.348988507767901E-15 -6.257210091497424E-15 -3.26067299154748E-12 7.876843842028007E-15 -6.26030343069036E-13 -2.974386183488297E-15
q -6.257210091497424E-15 1.67741665551759E-14 9.134366857924352E-12 -2.252562641507249E-14 1.771338708488011E-12 9.783059837619128E-15
tp -3.26067299154748E-12 9.134366857924352E-12 1.818091923364263E-8 -5.027495345126558E-11 3.8265066437241E-9 3.534945014257317E-11
node 7.876843842028007E-15 -2.252562641507249E-14 -5.027495345126558E-11 2.314921387798738E-10 -2.334511638981556E-10 6.48315862802875E-12
peri -6.26030343069036E-13 1.771338708488011E-12 3.8265066437241E-9 -2.334511638981556E-10 1.031293063062003E-9 1.209892613567222E-12
i -2.974386183488297E-15 9.783059837619128E-15 3.534945014257317E-11 6.48315862802875E-12 1.209892613567222E-12 1.830407105664936E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO459079  

30879 Hiroshikanai           Discovered 1992 May 25 by T. Seki at Geisei.
Hiroshi Kanai (b. 1915) is a enthusiast in the use of miniature cameras. Based in Tokyo, he served as president of Minox Club of Japan from 1969 to 2005, a period that saw the production of many outstanding photographers.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061109/MPCPages.arcLast Updated: 2006-11-13

Alternate Designations
 1992 KF = 1981 UY23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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