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193870 (2001 QF154)
Classification: Main-belt Asteroid          SPK-ID: 2193870
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2480879565862958 4.7703e-08  
a 2.294517281158196 1.1479e-08 au
q 1.725275177523716 1.1026e-07 au
i 4.989489131166978 6.3532e-06 deg
node 81.76852946765051 6.3818e-05 deg
peri 201.2913201919677 6.5857e-05 deg
M 184.6463697915518 1.4557e-05 deg
tp 2459618.868967552496
(2022-Feb-08.36896755)
5.1752e-05 TDB
period 1269.507954037062
3.48
9.5264e-06
2.608e-08
d
yr
n .2835744343745089 2.1279e-09 deg/d
Q 2.863759384792676 1.4326e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      6715 days (18.38 yr)  
   first obs. used      2001-08-01  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:25:01  

Additional Information
 Earth MOID = .709985 au 
 Jupiter MOID = 2.29699 au 
 T_jup = 3.549 
[ 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 17.2   n/a MPO440069  

193870 (2001 QF154)          Discovered 2001-Aug-29 by Wolf, M., Sarounova, L. at Ondrejov
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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