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JPL Small-Body Database Browser
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74712 (1999 RT155)
Classification: Main-belt Asteroid          SPK-ID: 2074712
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1350151249102244 3.5475e-08  
a 2.251351598318538 1.0516e-08 au
q 1.947385081054727 7.9534e-08 au
i 4.275899877101329 4.5564e-06 deg
node 234.2726983195707 5.687e-05 deg
peri 228.0269678957042 6.0483e-05 deg
M 189.8487743907526 2.3086e-05 deg
tp 2459183.671102144873
(2020-Nov-30.17110214)
8.1402e-05 TDB
period 1233.852980020758
3.38
8.6449e-06
2.367e-08
d
yr
n .2917689593730554 2.0443e-09 deg/d
Q 2.555318115582349 1.1936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      705  
   data-arc span      7294 days (19.97 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57346  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:44:02  

Additional Information
 Earth MOID = .967384 au 
 Jupiter MOID = 2.5867 au 
 T_jup = 3.611 
[ 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 15.9   n/a MPO395679  

74712 (1999 RT155)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RT155 = 2001 FQ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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