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65686 (1990 TN8)
Classification: Main-belt Asteroid          SPK-ID: 2065686
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2153639399219501 4.7788e-08  
a 3.043540134315295 1.802e-08 au
q 2.388071339678572 1.4225e-07 au
i 4.22639065525399 5.4689e-06 deg
node 186.6451101232221 5.1777e-05 deg
peri 167.7932359529783 5.2887e-05 deg
M 214.4326126369398 1.4114e-05 deg
tp 2459784.703114969937
(2022-Jul-24.20311497)
8.1079e-05 TDB
period 1939.398147505793
5.31
1.7224e-05
4.716e-08
d
yr
n .1856245972303243 1.6486e-09 deg/d
Q 3.699008928952018 2.1901e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      10855 days (29.72 yr)  
   first obs. used      1990-09-22  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53212  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:21:09  

Additional Information
 Earth MOID = 1.38357 au 
 Jupiter MOID = 1.75514 au 
 T_jup = 3.199 
[ 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 14.04   n/a E2021B10  

65686 (1990 TN8)          Discovered 1990-Oct-14 by Mrkos, A. at Klet
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 TN8 = 1990 SX26 = 1990 UU12 = 2001 QT77 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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