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JPL Small-Body Database Browser
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74261 (1998 SO84)
Classification: Main-belt Asteroid          SPK-ID: 2074261
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928898100760867 5.5588e-08  
a 2.348782754229835 1.3647e-08 au
q 1.895726494856455 1.3191e-07 au
i 6.153421530474884 5.7018e-06 deg
node 38.69258627209699 5.3397e-05 deg
peri 191.7365158899375 5.6159e-05 deg
M 7.977366934700678 1.8073e-05 deg
tp 2458571.364681567109
(2019-Mar-28.86468157)
6.5974e-05 TDB
period 1314.809099505729
3.60
1.1459e-05
3.137e-08
d
yr
n .2738040070876702 2.3863e-09 deg/d
Q 2.801839013603216 1.6279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      10074 days (27.58 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5986  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:41:22  

Additional Information
 Earth MOID = .886026 au 
 Jupiter MOID = 2.19072 au 
 T_jup = 3.526 
[ 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 15.4   n/a MPO432295  
diameter diameter 4.940 km 1.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.046   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

74261 (1998 SO84)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SO84 = 2002 TS256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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