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74275 (1998 SB117)
Classification: Main-belt Asteroid          SPK-ID: 2074275
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2246574374288559 4.2434e-08  
a 2.797036110772856 2.0926e-08 au
q 2.168661145730653 1.2154e-07 au
i 6.555129965677258 5.8193e-06 deg
node 245.9128663311219 4.2223e-05 deg
peri 71.00186143932726 4.4386e-05 deg
M 181.7902679849128 1.4921e-05 deg
tp 2459446.313189497490
(2021-Aug-19.81318950)
7.5482e-05 TDB
period 1708.62020146755
4.68
1.9174e-05
5.25e-08
d
yr
n .2106963265977966 2.3645e-09 deg/d
Q 3.42541107581506 2.5627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      7456 days (20.41 yr)  
   first obs. used      1998-09-26  
   last obs. used      2019-02-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55146  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:00:51  

Additional Information
 Earth MOID = 1.16517 au 
 Jupiter MOID = 1.92701 au 
 T_jup = 3.280 
[ 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 14.8   n/a MPO436302  
diameter diameter 5.932 km 0.438 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74275 (1998 SB117)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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