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85572 (1998 BY28)
Classification: Main-belt Asteroid          SPK-ID: 2085572
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596561350882486 5.0475e-08  
a 3.140511438467118 3.2079e-08 au
q 2.639109520001022 1.6908e-07 au
i 17.14118089242814 7.8193e-06 deg
node 312.8689925602553 1.5813e-05 deg
peri 279.6315254456661 3.1692e-05 deg
M 287.0857912592165 3.129e-05 deg
tp 2459412.226350401855
(2021-Jul-16.72635040)
0.00017965 TDB
period 2032.820333710379
5.57
3.1146e-05
8.527e-08
d
yr
n .1770938602050062 2.7134e-09 deg/d
Q 3.641913356933214 3.72e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      8120 days (22.23 yr)  
   first obs. used      1998-01-25  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:38:04  

Additional Information
 Earth MOID = 1.695 au 
 Jupiter MOID = 1.85198 au 
 T_jup = 3.123 
[ 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 14.2   n/a E2004J61  
diameter diameter 8.203 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85572 (1998 BY28)          Discovered 1998-Jan-25 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 BY28 = 2000 QX157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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