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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 
[ show covariance matrix ]

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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1906-Jul-27 23:53 00:03 Hebe 0.0236932301229946 0.0236887404320735 0.0236977442869497 8.55717009593136 8.55717006526918 2417419.494832144 2.77886076234492 1273.90886465582 64.7879315180597 -80.275221195246 53915.6860484732 T 20 CATAB v2.0f-lin.ifort 2020-Feb-23 17:12:21 2020-Feb-23 17:12

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