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JPL Small-Body Database Browser
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136949 (1998 QE110)
Classification: Main-belt Asteroid          SPK-ID: 2136949
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2185330279963821 8.3974e-08  
a 2.470709195316687 1.6373e-08 au
q 1.930777633565627 1.9844e-07 au
i 3.495999471930981 4.2887e-06 deg
node 109.0036725262078 9.6009e-05 deg
peri 270.2674957101187 9.7038e-05 deg
M 183.1717049670077 2.0406e-05 deg
tp 2459697.255062578115
(2022-Apr-27.75506258)
8.6604e-05 TDB
period 1418.505010645053
3.88
1.4101e-05
3.861e-08
d
yr
n .2537883174880666 2.5228e-09 deg/d
Q 3.010640757067747 1.9952e-08 au
  Orbit Determination Parameters
   # obs. used (total)      534  
   data-arc span      9427 days (25.81 yr)  
   first obs. used      1994-07-06  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60324  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 22:42:08  

Additional Information
 Earth MOID = .936896 au 
 Jupiter MOID = 2.45457 au 
 T_jup = 3.448 
[ 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 16.2   n/a MPO453851  
diameter diameter 1.514 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.082 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.255   0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136949 (1998 QE110)          Discovered 1998-Aug-23 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 QE110 = 2002 RJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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