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193937 (2001 RT28)
Classification: Main-belt Asteroid          SPK-ID: 2193937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819252103227018 6.3053e-08  
a 2.279513600689318 1.1255e-08 au
q 1.864812609450454 1.4426e-07 au
i 2.473200423018406 5.6759e-06 deg
node 344.8110348713845 0.00014964 deg
peri 53.9388593404342 0.00015081 deg
M 4.206660973953118 1.5604e-05 deg
tp 2458585.810848156228
(2019-Apr-12.31084816)
5.4461e-05 TDB
period 1257.076502361558
3.44
9.3099e-06
2.549e-08
d
yr
n .286378752067754 2.1209e-09 deg/d
Q 2.694214591928181 1.3302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6196 days (16.96 yr)  
   first obs. used      2001-08-21  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56712  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:05:35  

Additional Information
 Earth MOID = .873031 au 
 Jupiter MOID = 2.72354 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456858.5 (2014-Jul-20.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814871960818867 6.2913e-08  
q 1.865911885828263 1.4388e-07 au
tp 2457326.738603272799
(2015-Oct-31.23860327)
5.3487e-05 TDB
node 344.9166348714051 0.00014921 deg
peri 53.42517367300323 0.00015041 deg
i 2.477437807670408 5.6812e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      280  
   data-arc span      6196 days (16.96 yr)  
   first obs. used      2001-08-21  
   last obs. used      2018-08-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56712  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 15:05:35  

Additional Information
 Jupiter MOID = 2.72354 au 
 T_jup = 3.583 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.958040042773368E-15 -9.033335249852247E-15 -2.151220297661407E-13 8.040079960638265E-14 -1.464087417343401E-13 -7.400760708831657E-15
q -9.033335249852247E-15 2.070162764398797E-14 5.306366484334198E-13 -1.783074379936741E-13 3.294421335782722E-13 1.718291650074202E-14
tp -2.151220297661407E-13 5.306366484334198E-13 2.860887395797268E-9 -2.622925439142059E-12 1.045986259200943E-9 4.844961372909455E-13
node 8.040079960638265E-14 -1.783074379936741E-13 -2.622925439142059E-12 2.226432002349613E-8 -2.224427183688674E-8 3.448058851170208E-10
peri -1.464087417343401E-13 3.294421335782722E-13 1.045986259200943E-9 -2.224427183688674E-8 2.262304432774373E-8 -3.444137223443663E-10
i -7.400760708831657E-15 1.718291650074202E-14 4.844961372909455E-13 3.448058851170208E-10 -3.444137223443663E-10 3.227567161635232E-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 17.7   n/a MPO454348  

193937 (2001 RT28)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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