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JPL Small-Body Database Browser
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49289 (1998 UH40)
Classification: Main-belt Asteroid          SPK-ID: 2049289
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2817742826364796 3.5885e-08  
a 2.591492032449896 9.1055e-09 au
q 1.861276224048174 9.3203e-08 au
i 4.509540629650613 3.9065e-06 deg
node 354.5104875661854 5.8078e-05 deg
peri 67.58626856383171 5.8786e-05 deg
M 310.3813078493602 6.8972e-06 deg
tp 2458810.522612276550
(2019-Nov-23.02261228)
2.9098e-05 TDB
period 1523.783419966323
4.17
8.031e-06
2.199e-08
d
yr
n .2362540471847084 1.2452e-09 deg/d
Q 3.321707840851618 1.1671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      15426 days (42.23 yr)  
   first obs. used      1977-09-09  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4934  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:18:32  

Additional Information
 Earth MOID = .879388 au 
 Jupiter MOID = 2.05613 au 
 T_jup = 3.358 
[ 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 15.5   n/a MPO359071  

49289 (1998 UH40)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 UH40 = 1977 RL14 = 1998 VR8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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