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JPL Small-Body Database Browser
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74701 (1999 RT145)
Classification: Main-belt Asteroid          SPK-ID: 2074701
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323888469544236 4.5649e-08  
a 2.315676638151473 1.0966e-08 au
q 1.777539214292156 1.038e-07 au
i 3.282305985086214 5.1263e-06 deg
node 281.8314724956427 0.00010106 deg
peri 112.1538319890726 0.00010201 deg
M 171.4568477103059 1.5294e-05 deg
tp 2457987.489896790878
(2017-Aug-21.98989679)		 5.2038e-05 TDB
period 1287.10891458912
3.52		 9.1423e-06
2.503e-08		 d
yr
n .2796966099134833 1.9867e-09 deg/d
Q 2.85381406201079 1.3514e-08 au
   Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      14742 days (40.36 yr)  
   first obs. used      1978-11-28  
   last obs. used      2019-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5849  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 08:07:46  

Additional Information
 Earth MOID = .786616 au 
 Jupiter MOID = 2.59128 au 
 T_jup = 3.543 
[ 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 16.0   n/a MPO436305  

74701 (1999 RT145)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RT145 = 1978 WC21 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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