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74754 (1999 RO198)
Classification: Main-belt Asteroid          SPK-ID: 2074754
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09928314277373244 4.5454e-08  
a 2.215100538978905 9.3922e-09 au
q 1.995178395909291 1.0222e-07 au
i 6.796836922409094 4.9773e-06 deg
node 322.3717746785525 4.1103e-05 deg
peri 92.9604110397987 5.3914e-05 deg
M 47.94454288295398 3.0861e-05 deg
tp 2458840.129208536599
(2019-Dec-22.62920854)
0.00010357 TDB
period 1204.172184262305
3.30
7.6587e-06
2.097e-08
d
yr
n .2989605678531278 1.9014e-09 deg/d
Q 2.435022682048519 1.0325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      741  
   data-arc span      10548 days (28.88 yr)  
   first obs. used      1991-03-12  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50439  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:21:34  

Additional Information
 Earth MOID = 1.02033 au 
 Jupiter MOID = 2.82507 au 
 T_jup = 3.638 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO395679  

74754 (1999 RO198)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RO198 = 1999 RL19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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