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17854 (1998 JC4)
Classification: Main-belt Asteroid          SPK-ID: 2017854
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08025291249897924 4.256e-08  
a 3.065983543542179 1.8799e-08 au
q 2.819929434498978 1.257e-07 au
i 8.952094493756327 5.0218e-06 deg
node 213.7788827160093 2.5462e-05 deg
peri 211.5556331564031 3.8567e-05 deg
M 131.419267933195 2.8898e-05 deg
tp 2457884.670323874314
(2017-May-11.17032387)
0.00015671 TDB
period 1960.889658404157
5.37
1.8035e-05
4.938e-08
d
yr
n .183590136475594 1.6885e-09 deg/d
Q 3.312037652585379 2.0308e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1703  
   data-arc span      9880 days (27.05 yr)  
   first obs. used      1992-04-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45628  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:33:20  

Additional Information
 Earth MOID = 1.83673 au 
 Jupiter MOID = 2.03246 au 
 T_jup = 3.209 
[ 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 12.6   n/a MPO384907  
diameter diameter 10.126 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.143   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17854 (1998 JC4)          Discovered 1998-May-05 by Zoltowski, F. B. at Woomera
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 JC4 = 1992 HT4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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