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112P/Urata-Niijima
Classification: Jupiter-family Comet          SPK-ID: 1000113
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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:
Orbital Elements at Epoch 2455425.5 (2010-Aug-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .587407344869055 9.6709e-08  
a 3.536625264224123 1.7732e-08 au
q 1.459185607969411 3.4462e-07 au
i 24.20010522204686 1.6322e-05 deg
node 31.92988236979212 2.4344e-05 deg
peri 21.35107724365804 5.699e-05 deg
M 205.5014112561687 1.2239e-05 deg
tp 2456468.067086784024
(2013-Jun-24.56708678)
8.2828e-05 TDB
period 2429.304722417629
6.65
1.827e-05
5.002e-08
d
yr
n .1481905487927963 1.1145e-09 deg/d
Q 5.614064920478835 2.8147e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] 6.356228674755308E-11 1.299E-13
  Orbit Determination Parameters
   # obs. used (total)      609  
   data-arc span      12251 days (33.54 yr)  
   first obs. used      1986-10-04  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68358  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2020-May-26 16:57:37  

Additional Information
 Earth MOID = .485865 au 
 Jupiter MOID = .311482 au 
 T_jup = 2.688 
[ 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
comet total magnitude M1 14.6   1. 34 2 parameter fit from 284 observations, autocmod 2.8
comet total magnitude slope K1 15.   n/a 34 autocmod 2.8
comet nuclear magnitude M2 17.9   0.8 34 from 159 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 34 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 34 autocmod 2.8
diameter diameter 1.8 km n/a DASTCOM value unverified

112P/Urata-Niijima          Discovered 1986-Oct-30 by Urata, T. and Niijima, T. at Ojima
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1993.5   112P/1993 U1   1993 XII   1993q 
 1986.9   112P/1986 UD   1986 XVI   1986o 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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