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JPL Small-Body Database Browser
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185698 (1998 BT27)
Classification: Main-belt Asteroid          SPK-ID: 2185698
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08447785742789209 6.4873e-08  
a 2.745625096014324 2.2017e-08 au
q 2.513680570602783 1.7583e-07 au
i 3.082703245734551 4.6304e-06 deg
node 109.8993621480854 0.00013645 deg
peri 265.3678939874393 0.00013969 deg
M 62.77393472338033 2.7888e-05 deg
tp 2458710.740868504224
(2019-Aug-15.24086850)
0.00012902 TDB
period 1661.72931166648
4.55
1.9988e-05
5.472e-08
d
yr
n .216641782432646 2.6058e-09 deg/d
Q 2.977569621425864 2.3877e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      7954 days (21.78 yr)  
   first obs. used      1998-01-23  
   last obs. used      2019-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58482  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 15:08:19  

Additional Information
 Earth MOID = 1.51681 au 
 Jupiter MOID = 2.44116 au 
 T_jup = 3.341 
[ 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 16.6   n/a MPO446107  

185698 (1998 BT27)          Discovered 1998-Jan-23 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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