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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274663804150547 5.7144e-08  
a 2.669785424794738 1.3696e-08 au
q 2.062498997731809 1.5121e-07 au
i 12.82498493301046 6.4751e-06 deg
node 35.97458882876923 1.8702e-05 deg
peri 13.38963065479145 2.1085e-05 deg
M 132.5571343521523 1.1508e-05 deg
tp 2458013.803402435067
(2017-Sep-17.30340244)
4.8906e-05 TDB
period 1593.356526267924
4.36
1.226e-05
3.357e-08
d
yr
n .225938133785549 1.7385e-09 deg/d
Q 3.277071851857666 1.6811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1413  
   data-arc span      16630 days (45.53 yr)  
   first obs. used      1973-10-29  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:49:02  

Additional Information
 Earth MOID = 1.07378 au 
 Jupiter MOID = 2.14747 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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