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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07867450577420866 4.194e-08  
a 3.070472651599086 1.7905e-08 au
q 2.828904733241304 1.2451e-07 au
i 8.941732436872307 4.9688e-06 deg
node 213.7347129265367 2.4935e-05 deg
peri 211.695857731135 3.8355e-05 deg
M 204.6914025835254 2.9341e-05 deg
tp 2459848.311443033375
(2022-Sep-25.81144303)
0.00016185 TDB
period 1965.197835594123
5.38
1.7189e-05
4.706e-08
d
yr
n .1831876635927415 1.6023e-09 deg/d
Q 3.312040569956868 1.9313e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1793  
   data-arc span      10231 days (28.01 yr)  
   first obs. used      1992-04-22  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46487  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:42:10  

Additional Information
 Earth MOID = 1.84608 au 
 Jupiter MOID = 2.03075 au 
 T_jup = 3.208 
[ 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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