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JPL Small-Body Database Browser
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20404 (1998 OB14)
Classification: Main-belt Asteroid          SPK-ID: 2020404
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08619952427057188 4.6014e-08  
a 2.748424592049681 1.679e-08 au
q 2.511511699721458 1.2889e-07 au
i 18.23468913735108 6.6302e-06 deg
node 325.7314933295108 1.3854e-05 deg
peri 243.0578262832643 3.6713e-05 deg
M 306.3272084638414 3.4612e-05 deg
tp 2458848.628041984646
(2019-Dec-31.12804198)		 0.00016039 TDB
period 1664.271459670493
4.56		 1.525e-05
4.175e-08		 d
yr
n .2163108655791502 1.9821e-09 deg/d
Q 2.985337484377905 1.8237e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      13172 days (36.06 yr)  
   first obs. used      1983-04-15  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51935  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:52:20  

Additional Information
 Earth MOID = 1.56322 au 
 Jupiter MOID = 2.12752 au 
 T_jup = 3.269 
[ 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 13.9   n/a MPO384929  
diameter diameter 5.038 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.175   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20404 (1998 OB14)          Discovered 1998-Jul-26 by Elst, E. W. at La Silla
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 OB14 = 1985 RY4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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