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15426 (1998 SW43)
Classification: Outer Main-belt Asteroid          SPK-ID: 2015426
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694070097426214 5.8905e-08  
a 3.968355247374439 3.6816e-08 au
q 3.296088051320294 2.3534e-07 au
i 5.256275121661355 5.6843e-06 deg
node 240.5401101718842 5.5982e-05 deg
peri 136.5743819023473 5.7464e-05 deg
M 263.8915273728297 1.5297e-05 deg
tp 2459771.356282833878
(2022-Jul-10.85628283)
0.0001303 TDB
period 2887.448465617829
7.91
4.0182e-05
1.1e-07
d
yr
n .1246775498460613 1.735e-09 deg/d
Q 4.640622443428583 4.3053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      25125 days (68.79 yr)  
   first obs. used      1951-09-09  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:46  

Additional Information
 Earth MOID = 2.30088 au 
 Jupiter MOID = .898449 au 
 T_jup = 3.025 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456704.5 (2014-Feb-16.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1755969910836374 5.7972e-08  
q 3.253667407000498 2.2684e-07 au
tp 2456907.709323097524
(2014-Sep-07.20932310)
0.0001015 TDB
node 240.6384694328961 5.6031e-05 deg
peri 137.3888934880871 5.7384e-05 deg
i 5.263633675474975 5.7001e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      25125 days (68.79 yr)  
   first obs. used      1951-09-09  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:46  

Additional Information
 Jupiter MOID = .898449 au 
 T_jup = 3.025 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.360742177771961E-15 -1.301725128077086E-14 7.053533386003494E-13 -9.53906012783089E-15 3.640336617968563E-14 -3.301351472815821E-16
q -1.301725128077086E-14 5.145509524378652E-14 -1.47849904291794E-12 3.797394632754162E-14 -5.58248911428248E-15 1.474964730560316E-15
tp 7.053533386003494E-13 -1.47849904291794E-12 1.030284835235901E-8 6.462654633448268E-12 1.307679026399579E-9 -1.730574367796349E-12
node -9.53906012783089E-15 3.797394632754162E-14 6.462654633448268E-12 3.139422962121958E-9 -3.125012893287009E-9 -1.141681008956849E-10
peri 3.640336617968563E-14 -5.58248911428248E-15 1.307679026399579E-9 -3.125012893287009E-9 3.292977440462758E-9 1.134838949419565E-10
i -3.301351472815821E-16 1.474964730560316E-15 -1.730574367796349E-12 -1.141681008956849E-10 1.134838949419565E-10 3.249153998726423E-11

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 12.9   n/a MPO435844  
diameter diameter 14.142 km 0.527 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.073   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

15426 (1998 SW43)          Discovered 1998-Sep-26 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SW43 = 1990 TW4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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