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74722 (1999 RB168)
Classification: Main-belt Asteroid          SPK-ID: 2074722
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2381315801567388 3.9753e-08  
a 2.286344481258557 7.6454e-09 au
q 1.741893657153817 9.3184e-08 au
i 6.213878998592246 5.2499e-06 deg
node 151.9271731720203 3.9034e-05 deg
peri 88.62536339922437 4.0688e-05 deg
M 76.91273609815401 1.3062e-05 deg
tp 2458730.721903585299
(2019-Sep-04.22190359)
4.5056e-05 TDB
period 1262.731241095755
3.46
6.3338e-06
1.734e-08
d
yr
n .2850962962535118 1.43e-09 deg/d
Q 2.830795305363296 9.466e-09 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      7262 days (19.88 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-07-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55775  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:20:55  

Additional Information
 Earth MOID = .743472 au 
 Jupiter MOID = 2.20936 au 
 T_jup = 3.556 
[ 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 15.6   n/a MPO474633  

74722 (1999 RB168)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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