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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 ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2250299941835836 4.4569e-08  
a 2.308668960192187 8.873e-09 au
q 1.789149197508319 1.0339e-07 au
i 2.271392401995731 4.7294e-06 deg
node 350.1759066139751 0.00010566 deg
peri 327.7987658808507 0.00010605 deg
M 72.82712210948233 8.2551e-06 deg
tp 2458341.302045206459
(2018-Aug-10.80204521)
2.8986e-05 TDB
period 1281.270782407112
3.51
7.3865e-06
2.022e-08
d
yr
n .2809710522889402 1.6198e-09 deg/d
Q 2.828188722876054 1.087e-08 au
  Orbit Determination Parameters
   # obs. used (total)      431  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1990-08-16  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55882  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 13:10:50  

Additional Information
 Earth MOID = .775595 au 
 Jupiter MOID = 2.47772 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 16.8   n/a MPO459394  

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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