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134549 (1999 RN154)
Classification: Main-belt Asteroid          SPK-ID: 2134549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08140603128571706 3.3709e-08  
a 2.285320183646344 7.9702e-09 au
q 2.099281337278549 7.8088e-08 au
i 6.159811756508755 3.6759e-06 deg
node 324.5925701624148 3.5142e-05 deg
peri 95.55573803419301 4.3847e-05 deg
M 348.802017772874 2.439e-05 deg
tp 2459239.751502249335
(2021-Jan-25.25150225)
8.5442e-05 TDB
period 1261.882768087511
3.45
6.6013e-06
1.807e-08
d
yr
n .2852879911702179 1.4924e-09 deg/d
Q 2.471359030014139 8.619e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      7806 days (21.37 yr)  
   first obs. used      1999-09-05  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48638  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:00:16  

Additional Information
 Earth MOID = 1.12173 au 
 Jupiter MOID = 2.73962 au 
 T_jup = 3.590 
[ 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 15.78   n/a E2021B55  
rotation period rot_per 124. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]

134549 (1999 RN154)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1999 RN154 = 2001 DX14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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