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20115 Niheihajime (1995 VC1)
Classification: Main-belt Asteroid          SPK-ID: 2020115
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2264868366127274 5.6906e-08  
a 2.671962724565165 1.3295e-08 au
q 2.066798339531276 1.5086e-07 au
i 12.81488729142282 6.4406e-06 deg
node 35.95639708546765 1.8128e-05 deg
peri 13.34738983298564 2.0509e-05 deg
M 222.9690683961689 1.1804e-05 deg
tp 2459607.739661029554
(2022-Jan-28.23966103)
5.4919e-05 TDB
period 1595.306077336247
4.37
1.1907e-05
3.26e-08
d
yr
n .2256620250586069 1.6843e-09 deg/d
Q 3.277127109599054 1.6307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1496  
   data-arc span      16977 days (46.48 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:09:19  

Additional Information
 Earth MOID = 1.07855 au 
 Jupiter MOID = 2.14924 au 
 T_jup = 3.309 
[ 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 13.4   n/a MPO474030  
diameter diameter 4.604 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.399   0.104 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20115 Niheihajime           Discovered 1995 Nov. 12 by T. Okuni at Nanyo.
Hajime Nihei (b. 1972) is a member of the Nanyo Astronomy Lovers Club and actively popularizes astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 1995 VC1 = 1973 UQ3 = 1997 FF5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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