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129488 (1994 SW2)
Classification: Main-belt Asteroid          SPK-ID: 2129488
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .156996970508379 5.1758e-08  
a 2.770155259633134 1.8583e-08 au
q 2.33524927603288 1.4713e-07 au
i 7.082462035709417 6.4069e-06 deg
node 349.902143127529 3.5883e-05 deg
peri 231.182009873539 4.0345e-05 deg
M 333.6495446700112 1.9972e-05 deg
tp 2459123.765123843041
(2020-Oct-01.26512384)
9.3753e-05 TDB
period 1684.048492816445
4.61
1.6945e-05
4.639e-08
d
yr
n .2137705663082937 2.151e-09 deg/d
Q 3.205061243233387 2.15e-08 au
  Orbit Determination Parameters
   # obs. used (total)      597  
   data-arc span      9350 days (25.60 yr)  
   first obs. used      1994-09-12  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50428  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:44:49  

Additional Information
 Earth MOID = 1.33559 au 
 Jupiter MOID = 1.81497 au 
 T_jup = 3.309 
[ 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 15.2   n/a MPO422458  
diameter diameter 5.366 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129488 (1994 SW2)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1994 SW2 = 2006 BA43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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