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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2258092723693666 1.9181e-08  
a 2.673549016557207 1.2696e-08 au
q 2.069836858484588 5.5845e-08 au
i 12.80695317229761 1.4599e-06 deg
node 35.89421147262865 4.0086e-06 deg
peri 13.29901159589376 6.8718e-06 deg
M 268.1541703330689 9.6415e-06 deg
tp 2459607.868640733243
(2022-Jan-28.36864073)
4.4619e-05 TDB
period 1596.726941177268
4.37
1.1374e-05
3.114e-08
d
yr
n .2254612173917299 1.606e-09 deg/d
Q 3.277261174629825 1.5563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1593  
   data-arc span      17093 days (46.80 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:13:17  

Additional Information
 Earth MOID = 1.08065 au 
 Jupiter MOID = 2.15036 au 
 T_jup = 3.308 
[ 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 13.38   n/a MPCxxxxx  
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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