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JPL Small-Body Database Browser
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85174 (1990 QN8)
Classification: Main-belt Asteroid          SPK-ID: 2085174
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2252270652422469 4.4138e-08  
a 2.308624408705043 8.7415e-09 au
q 1.788659708385788 1.0221e-07 au
i 2.271663776897976 4.5599e-06 deg
node 350.1600417250545 0.00010443 deg
peri 327.8471736100913 0.00010475 deg
M 185.1548599692223 8.2377e-06 deg
tp 2459622.770790978784
(2022-Feb-12.27079098)
3.0959e-05 TDB
period 1281.233694645038
3.51
7.277e-06
1.992e-08
d
yr
n .2809791855339372 1.5959e-09 deg/d
Q 2.828589109024297 1.071e-08 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      10762 days (29.46 yr)  
   first obs. used      1990-08-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55305  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:27:53  

Additional Information
 Earth MOID = .775969 au 
 Jupiter MOID = 2.48017 au 
 T_jup = 3.551 
[ 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 16.7   n/a MPO468820  

85174 (1990 QN8)          Discovered 1990-Aug-16 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1990 QN8 = 2001 YD25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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