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146553 (2001 SX304)
Classification: Main-belt Asteroid          SPK-ID: 2146553
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06116173707756641 5.2368e-08  
a 2.759130664206422 2.0121e-08 au
q 2.590377439959577 1.5218e-07 au
i 4.463586263875843 5.6719e-06 deg
node 206.729107053788 5.621e-05 deg
peri 189.7484734559296 6.8031e-05 deg
M 4.365931756276002 3.8991e-05 deg
tp 2458980.198353057263
(2020-May-10.69835306)
0.00018125 TDB
period 1674.005299986472
4.58
1.8311e-05
5.013e-08
d
yr
n .2150530825696366 2.3524e-09 deg/d
Q 2.927883888453266 2.1351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      6595 days (18.06 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:05:20  

Additional Information
 Earth MOID = 1.59703 au 
 Jupiter MOID = 2.3471 au 
 T_jup = 3.335 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457219.5 (2015-Jul-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06165655997356806 5.2949e-08  
q 2.589469901215278 1.5402e-07 au
tp 2457293.286032460510
(2015-Sep-27.78603246)
0.00017339 TDB
node 206.7655789707226 5.6171e-05 deg
peri 187.1734205865392 6.7537e-05 deg
i 4.463047409098732 5.6779e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      6595 days (18.06 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 17:05:20  

Additional Information
 Jupiter MOID = 2.3471 au 
 T_jup = 3.335 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.803574728718493E-15 -8.100783423874638E-15 -2.444191174259257E-12 -8.897078245551894E-15 -4.863728612436989E-13 -1.96041728797346E-15
q -8.100783423874638E-15 2.372298553198976E-14 7.274050529367967E-12 2.551059535764969E-14 1.448301227100656E-12 5.974297140807869E-15
tp -2.444191174259257E-12 7.274050529367967E-12 3.006249688673718E-8 2.236330134870827E-11 6.51816733913529E-9 4.667322952905079E-12
node -8.897078245551894E-15 2.551059535764969E-14 2.236330134870827E-11 3.15514767297686E-9 -3.140374686987286E-9 -5.099349554178484E-11
peri -4.863728612436989E-13 1.448301227100656E-12 6.51816733913529E-9 -3.140374686987286E-9 4.561242534174782E-9 5.179821574201374E-11
i -1.96041728797346E-15 5.974297140807869E-15 4.667322952905079E-12 -5.099349554178484E-11 5.179821574201374E-11 3.223843809850062E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO449800  
diameter diameter 2.839 km 0.456 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146553 (2001 SX304)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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