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JPL Small-Body Database Browser
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49684 (1999 TH137)
Classification: Main-belt Asteroid          SPK-ID: 2049684
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0881769432799222 5.2084e-08  
a 2.348020651019127 9.8492e-09 au
q 2.140979367254128 1.2526e-07 au
i 5.283651167617929 5.3879e-06 deg
node 203.6011289337521 4.3525e-05 deg
peri 325.19502065998 4.9724e-05 deg
M 9.332948133700206 2.2625e-05 deg
tp 2458566.430351982032
(2019-Mar-23.93035198)
8.2589e-05 TDB
period 1314.169232568717
3.60
8.2688e-06
2.264e-08
d
yr
n .2739373218290406 1.7236e-09 deg/d
Q 2.555061934784127 1.0718e-08 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      9159 days (25.08 yr)  
   first obs. used      1994-04-06  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58816  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:41:05  

Additional Information
 Earth MOID = 1.14931 au 
 Jupiter MOID = 2.41964 au 
 T_jup = 3.549 
[ 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 15.8   n/a MPO436130  

49684 (1999 TH137)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TH137 = 2001 EN21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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