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74167 (1998 RF2)
Classification: Main-belt Asteroid          SPK-ID: 2074167
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .204118462185226 3.8348e-08  
a 2.731078175529547 1.8874e-08 au
q 2.173614698232823 1.0791e-07 au
i 13.35088053338007 9.0834e-06 deg
node 20.43163722627233 1.971e-05 deg
peri 265.5766839046867 3.0961e-05 deg
M 343.8474361018047 2.3282e-05 deg
tp 2459074.467099940773
(2020-Aug-12.96709994)
0.00010664 TDB
period 1648.540513227964
4.51
1.7089e-05
4.679e-08
d
yr
n .2183749790262015 2.2637e-09 deg/d
Q 3.288541652826271 2.2727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      23930 days (65.52 yr)  
   first obs. used      1953-10-31  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:05  

Additional Information
 Earth MOID = 1.20727 au 
 Jupiter MOID = 2.06376 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456419.5 (2013-May-07.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .201470003430739 3.7985e-08  
q 2.184121420555784 1.0616e-07 au
tp 2455771.447700763046
(2011-Jul-28.94770076)
0.00011221 TDB
node 20.79476940039921 1.9719e-05 deg
peri 264.5746704712926 3.1349e-05 deg
i 13.35033507496192 9.0746e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      794  
   data-arc span      23930 days (65.52 yr)  
   first obs. used      1953-10-31  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55366  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:12:05  

Additional Information
 Jupiter MOID = 2.06376 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.442877914279283E-15 -3.991883857007283E-15 5.918940779374264E-13 -6.205920618527563E-15 1.244690707990181E-13 4.991191095481399E-15
q -3.991883857007283E-15 1.127040758579693E-14 -1.933429368828647E-12 2.261791414834827E-14 -3.923226267607199E-13 -1.756964578814759E-14
tp 5.918940779374264E-13 -1.933429368828647E-12 1.259099042819221E-8 -2.383637412457744E-11 2.748635202678766E-9 -2.376658987434849E-13
node -6.205920618527563E-15 2.261791414834827E-14 -2.383637412457744E-11 3.888432081062112E-10 -3.818809696669551E-10 -3.977480011992068E-11
peri 1.244690707990181E-13 -3.923226267607199E-13 2.748635202678766E-9 -3.818809696669551E-10 9.8276247546441E-10 3.758693512263953E-11
i 4.991191095481399E-15 -1.756964578814759E-14 -2.376658987434849E-13 -3.977480011992068E-11 3.758693512263953E-11 8.234754890521639E-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 14.5   n/a MPO436302  

74167 (1998 RF2)          Discovered 1998-Sep-15 by ODAS at Caussols
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 RF2 = 2001 CA31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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