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74723 (1999 RU168)
Classification: Main-belt Asteroid          SPK-ID: 2074723
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301733646146963 3.7805e-08  
a 2.245218077969716 6.7121e-09 au
q 1.952950486466656 8.6289e-08 au
i 2.900901591033707 3.8898e-06 deg
node 169.5428945696263 6.3625e-05 deg
peri 146.1920617908997 6.5595e-05 deg
M 82.988973599166 1.3314e-05 deg
tp 2458717.227695938456
(2019-Aug-21.72769594)
4.5941e-05 TDB
period 1228.814203133858
3.36
5.5103e-06
1.509e-08
d
yr
n .2929653637481469 1.3137e-09 deg/d
Q 2.537485669472776 7.5858e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1482  
   data-arc span      10519 days (28.80 yr)  
   first obs. used      1991-02-17  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5537  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:27:04  

Additional Information
 Earth MOID = .940181 au 
 Jupiter MOID = 2.7114 au 
 T_jup = 3.618 
[ 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 15.1   n/a MPO280228  

74723 (1999 RU168)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RU168 = 1998 FF29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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