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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09907955632269695 4.5765e-08  
a 2.214696684174168 9.4222e-09 au
q 1.995265519316843 1.0287e-07 au
i 6.796774133575379 5.1693e-06 deg
node 322.377188146417 4.1573e-05 deg
peri 93.00079026895141 5.4486e-05 deg
M 288.3011794638552 3.1605e-05 deg
tp 2458840.261430291994
(2019-Dec-22.76143029)
0.00010518 TDB
period 1203.842884160211
3.30
7.6824e-06
2.103e-08
d
yr
n .2990423457552209 1.9084e-09 deg/d
Q 2.434127849031492 1.0356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      707  
   data-arc span      10488 days (28.71 yr)  
   first obs. used      1991-03-12  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:27:13  

Additional Information
 Earth MOID = 1.02001 au 
 Jupiter MOID = 2.82662 au 
 T_jup = 3.639 
[ 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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