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52440 (1994 QN)
Classification: Main-belt Asteroid          SPK-ID: 2052440
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2797935168587193 3.9383e-08  
a 2.334550344070252 8.8867e-09 au
q 1.681358293019103 9.268e-08 au
i 23.54576635450942 3.9715e-06 deg
node 66.98722961679817 1.1001e-05 deg
peri 294.0042335962411 1.2593e-05 deg
M 116.4384811680072 8.9634e-06 deg
tp 2458779.097290483652
(2019-Oct-22.59729048)
3.1173e-05 TDB
period 1302.876625528915
3.57
7.4393e-06
2.037e-08
d
yr
n .2763116575630133 1.5777e-09 deg/d
Q 2.987742395121401 1.1373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1206  
   data-arc span      9705 days (26.57 yr)  
   first obs. used      1994-08-26  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5198  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 06:18:26  

Additional Information
 Earth MOID = .799144 au 
 Jupiter MOID = 2.74023 au 
 T_jup = 3.408 
[ 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 14.81   n/a E2021B10  
diameter diameter 3.209 km 0.730 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52440 (1994 QN)          Discovered 1994-Aug-26 by McNaught, R. H. at Siding Spring
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1994 QN = 1998 XF16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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