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55212 Yukitoayatsuji (2001 RG46)
Classification: Main-belt Asteroid          SPK-ID: 2055212
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08251856541879507 3.941e-08  
a 2.938658827392923 1.9976e-08 au
q 2.69616491670118 1.2339e-07 au
i 3.00353401113265 4.116e-06 deg
node 145.5628155280483 8.0231e-05 deg
peri 126.3448837229402 8.6494e-05 deg
M 22.78857785821411 2.9268e-05 deg
tp 2459084.023878182729
(2020-Aug-22.52387818)
0.0001502 TDB
period 1840.018456399797
5.04
1.8762e-05
5.137e-08
d
yr
n .1956502114138467 1.995e-09 deg/d
Q 3.181152738084665 2.1625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1020  
   data-arc span      9680 days (26.50 yr)  
   first obs. used      1994-03-10  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54987  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 11:07:42  

Additional Information
 Earth MOID = 1.6795 au 
 Jupiter MOID = 1.89308 au 
 T_jup = 3.266 
[ 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 14.29   n/a E2021B10  
diameter diameter 4.826 km 0.527 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

55212 Yukitoayatsuji           Discovered 2001 Sept. 12 by R. A. Tucker at Goodricke-Pigott.
Yukito Ayatsuji is the pen name of Naoyuki Uchida (b. 1960), a Japanese writer of horror and mystery. He is one of the founders of the Honkaku Mystery Writers Club of Japan. He was one of the two winners of the 1992 Mystery Writers of Japan Award. His best-known works are The Decagon House Murders and Another.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-03-31Last Updated: 2018-04-05

[ show close-approach data ]
Alternate Designations
 2001 RG46 = 1994 EW8 = 1999 FH48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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