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3362 Khufu (1984 QA)
Classification: Aten [NEO, PHA]          SPK-ID: 2003362
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4684424537729014 5.7233e-07  
a .989557101460663 1.2539e-08 au
q .5260065447040301 5.7293e-07 au
i 9.916976142633629 1.1902e-05 deg
node 152.431507723395 5.8407e-05 deg
peri 55.0543956131713 4.7843e-05 deg
M 38.08270300471016 0.00018291 deg
tp 2459162.464863283427
(2020-Nov-08.96486328)
0.00018196 TDB
period 359.5503506217165
0.98
6.8342e-06
1.871e-08
d
yr
n 1.001250588067863 1.9031e-08 deg/d
Q 1.453107658217296 1.8413e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      7394 days (20.24 yr)  
   first obs. used      1984-08-30  
   last obs. used      2004-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .6347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 15:01:37  

Additional Information
 Earth MOID = .0130148 au 
 Jupiter MOID = 3.51952 au 
 T_jup = 6.017 
[ 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 18.3   n/a PDS3 (MPC 28110)  
diameter diameter 0.7 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
geometric albedo albedo 0.21   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  

3362 Khufu (1984 QA)          Discovered 1984-Aug-30 by Dunbar, R. S. and Barucci, M. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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