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74112 (1998 QE40)
Classification: Main-belt Asteroid          SPK-ID: 2074112
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1736005185030043 5.837e-08  
a 2.474819668849384 9.4088e-09 au
q 2.045189691135698 1.413e-07 au
i 3.124299652124139 5.7565e-06 deg
node 198.5061452154669 5.793e-05 deg
peri 224.0063751231235 5.9425e-05 deg
M 147.8226393568193 1.1619e-05 deg
tp 2458416.581524440845
(2018-Oct-25.08152444)
4.5328e-05 TDB
period 1422.04639367778
3.89
8.1095e-06
2.22e-08
d
yr
n .253156297572646 1.4437e-09 deg/d
Q 2.90444964656307 1.1042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1596  
   data-arc span      7938 days (21.73 yr)  
   first obs. used      1998-08-03  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48244  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:03:14  

Additional Information
 Earth MOID = 1.05951 au 
 Jupiter MOID = 2.41756 au 
 T_jup = 3.459 
[ 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 14.9   n/a MPO337816  
diameter diameter 3.056 km 0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.189   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74112 (1998 QE40)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QE40 = 2000 CO52 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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