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JPL Small-Body Database Browser
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173810 (2001 SW256)
Classification: Main-belt Asteroid          SPK-ID: 2173810
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08898761816034462 5.6044e-08  
a 2.875591511904811 3.0419e-08 au
q 2.619699472458298 1.6795e-07 au
i 3.040247922201296 6.3792e-06 deg
node 97.8421495078745 0.00011942 deg
peri 292.1486875267684 0.00012644 deg
M 296.5405180462744 4.383e-05 deg
tp 2459314.466446807719
(2021-Apr-09.96644681)
0.00021956 TDB
period 1781.103743223093
4.88
2.8262e-05
7.738e-08
d
yr
n .2021218591953226 3.2072e-09 deg/d
Q 3.131483551351325 3.3126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      6049 days (16.56 yr)  
   first obs. used      2001-09-19  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55802  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:43:35  

Additional Information
 Earth MOID = 1.62684 au 
 Jupiter MOID = 2.26181 au 
 T_jup = 3.288 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456350.5 (2013-Feb-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09318149508084833 5.6566e-08  
q 2.604802573942031 1.7024e-07 au
tp 2455751.892161077028
(2011-Jul-09.39216108)
0.00018203 TDB
node 97.88284729734043 0.00011967 deg
peri 291.6896789787908 0.00012593 deg
i 3.039244552480065 6.3724e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      371  
   data-arc span      6049 days (16.56 yr)  
   first obs. used      2001-09-19  
   last obs. used      2018-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55802  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:43:35  

Additional Information
 Jupiter MOID = 2.26181 au 
 T_jup = 3.288 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.199736740020875E-15 -9.514341684297502E-15 -1.472684899027503E-12 -1.967945419903992E-14 -3.429810690960703E-13 -6.238756332435754E-16
q -9.514341684297502E-15 2.898117664587945E-14 5.944583153440835E-12 5.781314962238013E-14 1.393386432504349E-12 2.105444649948118E-15
tp -1.472684899027503E-12 5.944583153440835E-12 3.313479805813292E-8 -6.058543656434557E-11 7.183777670232121E-9 -2.49228425388742E-12
node -1.967945419903992E-14 5.781314962238013E-14 -6.058543656434557E-11 1.432018954102801E-8 -1.431217015739317E-8 5.638128352316523E-11
peri -3.429810690960703E-13 1.393386432504349E-12 7.183777670232121E-9 -1.431217015739317E-8 1.585918870206275E-8 -5.679932880206909E-11
i -6.238756332435754E-16 2.105444649948118E-15 -2.49228425388742E-12 5.638128352316523E-11 -5.679932880206909E-11 4.060716630386773E-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 15.8   n/a MPO436863  

173810 (2001 SW256)          Discovered 2001-Sep-19 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 SW256 = 2001 UN126 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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