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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 ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2480586086050612 3.9124e-08  
a 2.294457472657483 1.0971e-08 au
q 1.725297544486582 9.2478e-08 au
i 4.989119819233754 5.0153e-06 deg
node 81.76455506725176 5.8505e-05 deg
peri 201.3212328287809 5.9698e-05 deg
M 241.3204338959765 1.1815e-05 deg
tp 2459618.996562194251
(2022-Feb-08.49656219)
4.2718e-05 TDB
period 1269.458318189982
3.48
9.1047e-06
2.493e-08
d
yr
n .2835855221408884 2.0339e-09 deg/d
Q 2.863617400828384 1.3692e-08 au
  Orbit Determination Parameters
   # obs. used (total)      335  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      2001-08-01  
   last obs. used      2021-04-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .64056  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:20:47  

Additional Information
 Earth MOID = .708113 au 
 Jupiter MOID = 2.2965 au 
 T_jup = 3.550 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.35   n/a MPCxxxxx  

193870 (2001 QF154)          Discovered 2001-Aug-29 by Wolf, M., Sarounova, L. at Ondrejov
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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