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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1820614841619204 5.5804e-08  
a 2.279268367717407 1.0771e-08 au
q 1.864301385887458 1.2632e-07 au
i 2.473514669879912 5.2175e-06 deg
node 344.8038004854462 0.0001259 deg
peri 53.88316166152286 0.00012718 deg
M 118.8101828430414 1.54e-05 deg
tp 2458585.696143655355
(2019-Apr-12.19614366)
5.2734e-05 TDB
period 1256.873650984523
3.44
8.9094e-06
2.439e-08
d
yr
n .2864249717686484 2.0303e-09 deg/d
Q 2.694235349547356 1.2732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2001-08-21  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:12:12  

Additional Information
 Earth MOID = .873106 au 
 Jupiter MOID = 2.72514 au 
 T_jup = 3.583 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457209.5 (2015-Jul-06.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1813209415711854 5.5829e-08  
q 1.866411609744193 1.2633e-07 au
tp 2457326.746105517304
(2015-Oct-31.24610552)
5.0987e-05 TDB
node 344.9131052670814 0.00012555 deg
peri 53.40359084515516 0.00012687 deg
i 2.477475335203143 5.2218e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      300  
   data-arc span      6738 days (18.45 yr)  
   first obs. used      2001-08-21  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 22:12:12  

Additional Information
 Jupiter MOID = 2.72514 au 
 T_jup = 3.583 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.116860254369263E-15 -7.036181216279836E-15 -6.881164602926534E-13 8.523005797292217E-14 -3.710161661163914E-13 -4.940812924458024E-15
q -7.036181216279836E-15 1.596046463213657E-14 1.649788713921538E-12 -1.917906501623066E-13 8.630021842122794E-13 1.129221668218958E-14
tp -6.881164602926534E-13 1.649788713921538E-12 2.599676479355163E-9 -2.873130778836554E-11 9.500424287209606E-10 1.044767517311448E-12
node 8.523005797292217E-14 -1.917906501623066E-13 -2.873130778836554E-11 1.576244781368696E-8 -1.575788749316413E-8 1.655099333437415E-10
peri -3.710161661163914E-13 8.630021842122794E-13 9.500424287209606E-10 -1.575788749316413E-8 1.60952256547147E-8 -1.649478093433057E-10
i -4.940812924458024E-15 1.129221668218958E-14 1.044767517311448E-12 1.655099333437415E-10 -1.649478093433057E-10 2.726759521083235E-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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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