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74606 (1999 RR12)
Classification: Main-belt Asteroid          SPK-ID: 2074606
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596845454441468 9.2111e-08  
a 2.479130309006732 1.4668e-08 au
q 2.083251512516185 2.2074e-07 au
i 5.903643583034551 4.5515e-06 deg
node 309.2991450551885 6.6746e-05 deg
peri 95.18578919304757 6.9734e-05 deg
M 63.97509670657595 1.5756e-05 deg
tp 2458747.129581048009
(2019-Sep-20.62958105)
6.2779e-05 TDB
period 1425.763391043703
3.90
1.2653e-05
3.464e-08
d
yr
n .2524963133865211 2.2409e-09 deg/d
Q 2.87500910549728 1.701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      896  
   data-arc span      10406 days (28.49 yr)  
   first obs. used      1991-08-05  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5136  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:19:18  

Additional Information
 Earth MOID = 1.10233 au 
 Jupiter MOID = 2.53504 au 
 T_jup = 3.454 
[ 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 15.2   n/a MPO359268  

74606 (1999 RR12)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RR12 = 1991 PX27 = 2001 BX32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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