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39879 (1998 EK8)
Classification: Main-belt Asteroid          SPK-ID: 2039879
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06755501462576162 3.3035e-08  
a 2.359842767512428 9.1121e-09 au
q 2.200423554838628 7.9604e-08 au
i 5.815667157974071 3.9447e-06 deg
node 276.2821954595535 3.7206e-05 deg
peri 303.2843520627991 5.0098e-05 deg
M 246.9500434957741 3.4534e-05 deg
tp 2459016.306167801033
(2020-Jun-15.80616780)
0.00012728 TDB
period 1324.106837695036
3.63
7.6692e-06
2.1e-08
d
yr
n .271881384304817 1.5747e-09 deg/d
Q 2.519261980186228 9.7277e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1788  
   data-arc span      7943 days (21.75 yr)  
   first obs. used      1998-02-25  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50703  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 02:33:17  

Additional Information
 Earth MOID = 1.19766 au 
 Jupiter MOID = 2.48188 au 
 T_jup = 3.542 
[ 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 14.1   n/a MPO365720  
diameter diameter 3.727 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39879 (1998 EK8)          Discovered 1998-Mar-03 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EK8 = 1999 NO8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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