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190284 (1991 TN16)
Classification: Main-belt Asteroid          SPK-ID: 2190284
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1662643971482377 6.2574e-08  
a 2.288549662441481 1.5494e-08 au
q 1.908045332471846 1.3805e-07 au
i 3.300269352467787 7.4466e-06 deg
node 146.1425166978065 8.5441e-05 deg
peri 242.9084647775409 8.8697e-05 deg
M 102.1465724715341 2.0081e-05 deg
tp 2458641.693554154040
(2019-Jun-07.19355415)
7.0583e-05 TDB
period 1264.558539549061
3.46
1.2842e-05
3.516e-08
d
yr
n .2846843295434748 2.891e-09 deg/d
Q 2.669053992411118 1.807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      10346 days (28.33 yr)  
   first obs. used      1991-10-06  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 21:16:57  

Additional Information
 Earth MOID = .915553 au 
 Jupiter MOID = 2.77315 au 
 T_jup = 3.579 
[ 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 17.4   n/a MPO454314  

190284 (1991 TN16)          Discovered 1991-Oct-06 by Lowe, A. at Palomar
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Alternate Designations
 1991 TN16 = 2005 XF26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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