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JPL Small-Body Database Browser
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11734 (1998 KM55)
Classification: Main-belt Asteroid          SPK-ID: 2011734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301091571877392 2.8919e-08  
a 2.651248282962084 1.0944e-08 au
q 2.306296603370447 7.55e-08 au
i 12.49272710725075 4.609e-06 deg
node 221.6240379039334 1.4683e-05 deg
peri 254.073001336566 2.3405e-05 deg
M 165.6131640361973 1.8092e-05 deg
tp 2458275.118657482986
(2018-Jun-05.61865748)
7.9262e-05 TDB
period 1576.79061822072
4.32
9.7631e-06
2.673e-08
d
yr
n .2283118607125089 1.4137e-09 deg/d
Q 2.996199962553722 1.2368e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2058  
   data-arc span      25833 days (70.73 yr)  
   first obs. used      1948-11-24  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41923  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:10:24  

Additional Information
 Earth MOID = 1.35887 au 
 Jupiter MOID = 2.26087 au 
 T_jup = 3.345 
[ 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 12.5   n/a MPO473925  
diameter diameter 7.705 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.326   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11734 (1998 KM55)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KM55 = 1948 WO = 1976 JF1 = 1978 TZ2 = 1991 XM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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