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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1688260506049344 5.8409e-08  
a 3.97751720434351 3.6348e-08 au
q 3.306008683521015 2.3677e-07 au
i 5.243286539031797 5.6727e-06 deg
node 240.4393740292302 5.4943e-05 deg
peri 135.8770515609526 5.6508e-05 deg
M 289.538611157385 1.5605e-05 deg
tp 2459767.607284062551
(2022-Jul-07.10728406)
0.0001311 TDB
period 2897.453848355648
7.93
3.9717e-05
1.087e-07
d
yr
n .1242470178444105 1.7031e-09 deg/d
Q 4.649025725166005 4.2485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1180  
   data-arc span      25125 days (68.79 yr)  
   first obs. used      1951-09-09  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53289  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:57:37  

Additional Information
 Earth MOID = 2.30925 au 
 Jupiter MOID = .89478 au 
 T_jup = 3.024 
[ 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 12.89   n/a E2021B10  
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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