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JPL Small-Body Database Browser
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49154 (1998 SM53)
Classification: Main-belt Asteroid          SPK-ID: 2049154
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780382524661077 4.9416e-08  
a 2.422564941008748 1.4806e-08 au
q 1.991255712425891 1.1956e-07 au
i 7.726001280033902 6.6434e-06 deg
node 337.9242737246825 3.0574e-05 deg
peri 323.962811634502 3.4933e-05 deg
M 205.6670692813055 1.8462e-05 deg
tp 2459190.928987445131
(2020-Dec-07.42898745)
7.2841e-05 TDB
period 1377.246155376094
3.77
1.2626e-05
3.457e-08
d
yr
n .2613911816669347 2.3964e-09 deg/d
Q 2.853874169591605 1.7442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      9448 days (25.87 yr)  
   first obs. used      1993-03-25  
   last obs. used      2019-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55619  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:49:21  

Additional Information
 Earth MOID = .981376 au 
 Jupiter MOID = 2.40726 au 
 T_jup = 3.479 
[ 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 15.7   n/a MPO270384  

49154 (1998 SM53)          Discovered 1998-Sep-16 by LONEOS at Anderson Mesa
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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