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39826 (1998 BY2)
Classification: Main-belt Asteroid          SPK-ID: 2039826
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1017149153596428 3.0959e-08  
a 2.258592807866556 8.2318e-09 au
q 2.028860231582512 7.0673e-08 au
i 2.91453669112107 3.8747e-06 deg
node 3.990794181506755 7.0533e-05 deg
peri 101.9181210142324 7.4856e-05 deg
M 110.9261806448025 2.2145e-05 deg
tp 2458218.479298943807
(2018-Apr-09.97929894)
7.6627e-05 TDB
period 1239.810580160577
3.39
6.778e-06
1.856e-08
d
yr
n .2903669364987786 1.5874e-09 deg/d
Q 2.488325384150601 9.069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1450  
   data-arc span      9343 days (25.58 yr)  
   first obs. used      1993-10-10  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:11:20  

Additional Information
 Earth MOID = 1.04825 au 
 Jupiter MOID = 2.60346 au 
 T_jup = 3.613 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO436049  
diameter diameter 2.568 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.424   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

39826 (1998 BY2)          Discovered 1998-Jan-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 BY2 = 1993 TW41 = 1993 UH9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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