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JPL Small-Body Database Browser
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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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694070151083825 5.9591e-08  
a 3.968355248770179 3.6876e-08 au
q 3.29608803118634 2.3778e-07 au
i 5.256274795276343 5.7023e-06 deg
node 240.5401146010069 5.6317e-05 deg
peri 136.5743774027274 5.7786e-05 deg
M 263.8915269683991 1.531e-05 deg
tp 2459771.356286484375
(2022-Jul-10.85628648)
0.00013042 TDB
period 2887.448467141179
7.91
4.0247e-05
1.102e-07
d
yr
n .1246775497802843 1.7378e-09 deg/d
Q 4.640622466354018 4.3123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      25063 days (68.62 yr)  
   first obs. used      1951-09-09  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:11:12  

Additional Information
 Earth MOID = 2.30088 au 
 Jupiter MOID = .898449 au 
 T_jup = 3.025 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456694.5 (2014-Feb-06.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756115302446054 5.8618e-08  
q 3.253666139098814 2.2898e-07 au
tp 2456907.701700306905
(2014-Sep-07.20170031)
0.00010151 TDB
node 240.6390332201215 5.6366e-05 deg
peri 137.3872143701557 5.7708e-05 deg
i 5.26362405636993 5.7182e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      25063 days (68.62 yr)  
   first obs. used      1951-09-09  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53377  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:11:12  

Additional Information
 Jupiter MOID = .898449 au 
 T_jup = 3.025 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.436117956723131E-15 -1.328874383209774E-14 7.18327692319878E-13 -9.641555609662208E-15 3.394446242955297E-14 -3.466846685394678E-16
q -1.328874383209774E-14 5.243309266880217E-14 -1.52549901101605E-12 3.847620669342991E-14 3.103581379644353E-15 1.524801672417249E-15
tp 7.18327692319878E-13 -1.52549901101605E-12 1.03038452222404E-8 7.033948902529138E-12 1.306485907775948E-9 -1.777241311229756E-12
node -9.641555609662208E-15 3.847620669342991E-14 7.033948902529138E-12 3.177104146846554E-9 -3.162454038289047E-9 -1.169545848171066E-10
peri 3.394446242955297E-14 3.103581379644353E-15 1.306485907775948E-9 -3.162454038289047E-9 3.330239406391387E-9 1.16253357295246E-10
i -3.466846685394678E-16 1.524801672417249E-15 -1.777241311229756E-12 -1.169545848171066E-10 1.16253357295246E-10 3.269765150664859E-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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