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JPL Small-Body Database Browser
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85842 (1998 YK7)
Classification: Main-belt Asteroid          SPK-ID: 2085842
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1249598377161054 4.5303e-08  
a 2.614233734025047 1.4883e-08 au
q 2.287559510869309 1.1815e-07 au
i 6.003216468198087 3.8543e-06 deg
node 81.64832869814077 5.131e-05 deg
peri 32.25069373204838 5.5759e-05 deg
M 291.2707848834941 2.0802e-05 deg
tp 2458895.250080344098
(2020-Feb-15.75008034)
8.9591e-05 TDB
period 1543.885358562638
4.23
1.3184e-05
3.61e-08
d
yr
n .2331779351383714 1.9912e-09 deg/d
Q 2.940907957180785 1.6742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      7268 days (19.90 yr)  
   first obs. used      1998-12-16  
   last obs. used      2018-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55686  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:14:12  

Additional Information
 Earth MOID = 1.30696 au 
 Jupiter MOID = 2.16667 au 
 T_jup = 3.389 
[ 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 15.2   n/a MPO453289  

85842 (1998 YK7)          Discovered 1998-Dec-22 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 YK7 = 2001 QQ272 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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