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46937 (1998 SA71)
Classification: Main-belt Asteroid          SPK-ID: 2046937
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302668155040798 3.9666e-08  
a 2.560138591842749 1.1302e-08 au
q 2.226637490234295 1.0098e-07 au
i 9.585378494930225 4.9013e-06 deg
node 183.4456472619527 2.3153e-05 deg
peri 288.7384337814743 2.9126e-05 deg
M 290.8083716382092 1.9345e-05 deg
tp 2458888.070737991756
(2020-Feb-08.57073799)
8.1312e-05 TDB
period 1496.213749092818
4.10
9.9074e-06
2.712e-08
d
yr
n .2406073331556234 1.5932e-09 deg/d
Q 2.893639693451203 1.2774e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1365  
   data-arc span      10579 days (28.96 yr)  
   first obs. used      1990-11-11  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:29:38  

Additional Information
 Earth MOID = 1.26455 au 
 Jupiter MOID = 2.24787 au 
 T_jup = 3.404 
[ 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 14.3   n/a MPO319645  
diameter diameter 3.718 km 1.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.293   0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46937 (1998 SA71)          Discovered 1998-Sep-21 by Elst, E. W. at La Silla
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SA71 = 2000 EB57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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