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74250 (1998 SN65)
Classification: Main-belt Asteroid          SPK-ID: 2074250
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285770830466808 5.0975e-08  
a 2.768131159912968 2.2192e-08 au
q 2.135399813889436 1.4785e-07 au
i 8.141330068591271 6.1064e-06 deg
node 57.32955417913758 4.0719e-05 deg
peri 268.0342870982455 4.2834e-05 deg
M 201.6661152100178 1.2914e-05 deg
tp 2459340.360411522234
(2021-May-05.86041152)
6.3518e-05 TDB
period 1682.203076753261
4.61
2.023e-05
5.539e-08
d
yr
n .2140050776121624 2.5736e-09 deg/d
Q 3.400862505936499 2.7265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8040 days (22.01 yr)  
   first obs. used      1997-05-03  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57786  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:20  

Additional Information
 Earth MOID = 1.14181 au 
 Jupiter MOID = 2.01329 au 
 T_jup = 3.286 
[ 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 MPO432295  
diameter diameter 6.887 km 0.393 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74250 (1998 SN65)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SN65 = 1997 JD13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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