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78422 (2002 QN41)
Classification: Main-belt Asteroid          SPK-ID: 2078422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1795562412773433 4.1382e-08  
a 2.911268821904955 1.9423e-08 au
q 2.388532334895782 1.2028e-07 au
i 12.72663502346472 6.4433e-06 deg
node 334.8890605016946 1.93e-05 deg
peri 67.52953292275673 2.5416e-05 deg
M 141.2994809770548 1.7433e-05 deg
tp 2458288.368893206010
(2018-Jun-18.86889321)
8.606e-05 TDB
period 1814.353433382159
4.97
1.8157e-05
4.971e-08
d
yr
n .1984177908098752 1.9857e-09 deg/d
Q 3.434005308914128 2.2911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      7853 days (21.50 yr)  
   first obs. used      1998-11-16  
   last obs. used      2020-05-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:56  

Additional Information
 Earth MOID = 1.42937 au 
 Jupiter MOID = 2.20513 au 
 T_jup = 3.223 
[ 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 14.4   n/a MPO468738  
diameter diameter 4.685 km 1.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78422 (2002 QN41)          Discovered 2002-Aug-29 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 QN41 = 1998 XK70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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