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161850 (2007 BY7)
Classification: Main-belt Asteroid          SPK-ID: 2161850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1504330888729277 4.9961e-08  
a 2.760548605964094 1.9456e-08 au
q 2.345270752185061 1.4366e-07 au
i 12.7852940401245 5.3597e-06 deg
node 335.890003463264 2.1014e-05 deg
peri 153.1291820395102 2.8327e-05 deg
M 328.89883092284 1.9209e-05 deg
tp 2459145.232391350946
(2020-Oct-22.73239135)
9.0152e-05 TDB
period 1675.295895053802
4.59
1.7711e-05
4.849e-08
d
yr
n .2148874124641955 2.2718e-09 deg/d
Q 3.175826459743127 2.2383e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      8002 days (21.91 yr)  
   first obs. used      1998-02-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 13:42:24  

Additional Information
 Earth MOID = 1.3663 au 
 Jupiter MOID = 1.87557 au 
 T_jup = 3.289 
[ 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 15.4   n/a MPO454075  

161850 (2007 BY7)          Discovered 2007-Jan-24 by Lowe, A. at Mayhill
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2007 BY7 = 1998 FS18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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