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146458 (2001 RH38)
Classification: Main-belt Asteroid          SPK-ID: 2146458
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2586044242477391 3.801e-08  
a 2.720501647006906 1.4934e-08 au
q 2.016967884917659 1.0896e-07 au
i 12.33721653142782 5.2456e-06 deg
node 350.3334462057402 1.7759e-05 deg
peri 106.6149841192416 2.0499e-05 deg
M 346.2977871863357 1.0069e-05 deg
tp 2459062.882119207614
(2020-Aug-01.38211921)
4.6079e-05 TDB
period 1638.973443205136
4.49
1.3495e-05
3.695e-08
d
yr
n .2196496846806699 1.8086e-09 deg/d
Q 3.424035409096154 1.8796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      9432 days (25.82 yr)  
   first obs. used      1994-02-08  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:41  

Additional Information
 Earth MOID = 1.07291 au 
 Jupiter MOID = 1.89816 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457149.5 (2015-May-07.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2565487962871568 3.8213e-08  
q 2.023584583611074 1.0949e-07 au
tp 2457424.253171821170
(2016-Feb-05.75317182)
4.2176e-05 TDB
node 350.4136147104784 1.7726e-05 deg
peri 106.7111735319745 2.052e-05 deg
i 12.34508073440432 5.2479e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      536  
   data-arc span      9432 days (25.82 yr)  
   first obs. used      1994-02-08  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55872  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 11:36:41  

Additional Information
 Jupiter MOID = 1.89816 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.460242388535522E-15 -4.166767920861588E-15 4.542903450438948E-14 -2.710144615067067E-15 8.064460670975869E-14 -8.293149456132645E-15
q -4.166767920861588E-15 1.198801244317239E-14 -4.295548942737969E-14 6.105225730103569E-15 -2.156058641638461E-13 2.455222604274562E-14
tp 4.542903450438948E-14 -4.295548942737969E-14 1.778813651772039E-9 -7.399998169583062E-12 4.389574595689741E-10 8.57646236334171E-12
node -2.710144615067067E-15 6.105225730103569E-15 -7.399998169583062E-12 3.141961791023487E-10 -3.085089419708621E-10 3.670540005614737E-12
peri 8.064460670975869E-14 -2.156058641638461E-13 4.389574595689741E-10 -3.085089419708621E-10 4.210524745481769E-10 -2.184105440938404E-12
i -8.293149456132645E-15 2.455222604274562E-14 8.57646236334171E-12 3.670540005614737E-12 -2.184105440938404E-12 2.754092839873187E-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 15.5   n/a MPO366824  

146458 (2001 RH38)          Discovered 2001-Sep-08 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

[ show close-approach data ]
Alternate Designations
 2001 RH38 = 1994 CR17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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