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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456882.5 (2014-Aug-13.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1316271268046886 2.902e-08  
q 2.299413854964765 7.6006e-08 au
tp 2456698.990520051541
(2014-Feb-10.49052005)
7.8724e-05 TDB
node 221.7089800381053 1.466e-05 deg
peri 253.3631583407922 2.325e-05 deg
i 12.50912815525207 4.6141e-06 deg
  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
 Jupiter MOID = 2.26087 au 
 T_jup = 3.345 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.421500198132106E-16 -2.189218494227563E-15 -4.506326343247158E-13 1.363388608567734E-15 -1.102780315153057E-13 1.206312619777338E-15
q -2.189218494227563E-15 5.776967039940342E-15 1.106583480276656E-12 -4.365758607085238E-15 2.75364688649504E-13 -2.682922353846155E-15
tp -4.506326343247158E-13 1.106583480276656E-12 6.197490772229103E-9 -1.472163018574171E-11 1.428184146989973E-9 2.430946430222085E-12
node 1.363388608567734E-15 -4.365758607085238E-15 -1.472163018574171E-11 2.149108809358421E-10 -2.128051984590122E-10 -2.229040292760793E-12
peri -1.102780315153057E-13 2.75364688649504E-13 1.428184146989973E-9 -2.128051984590122E-10 5.405453933968035E-10 2.743431315577977E-12
i 1.206312619777338E-15 -2.682922353846155E-15 2.430946430222085E-12 -2.229040292760793E-12 2.743431315577977E-12 2.128958069418215E-11

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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