Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
19502 (1998 KB51)
Classification: Main-belt Asteroid          SPK-ID: 2019502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .108482109310214 2.6211e-08  
a 2.517172057407817 7.4052e-09 au
q 2.244103923123486 6.6759e-08 au
i 8.492768883548898 1.0008e-06 deg
node 178.6714068724422 2.9342e-06 deg
peri 62.37117875593451 8.5737e-06 deg
M 235.4181262357863 8.091e-06 deg
tp 2459705.300920071399
(2022-May-05.80092007)
3.383e-05 TDB
period 1458.706035916962
3.99
6.437e-06
1.762e-08
d
yr
n .2467940703170527 1.0891e-09 deg/d
Q 2.790240191692148 8.2085e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2662  
   data-arc span      14175 days (38.81 yr)  
   first obs. used      1982-05-23  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:55:57  

Additional Information
 Earth MOID = 1.24607 au 
 Jupiter MOID = 2.22715 au 
 T_jup = 3.435 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457074.5 (2015-Feb-21.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087170218763302 2.6109e-08  
q 2.243285526528712 6.6482e-08 au
tp 2456790.274219624687
(2014-May-12.77421962)
2.9833e-05 TDB
node 178.708361520273 2.9323e-06 deg
peri 62.75126433023755 8.6403e-06 deg
i 8.49567025880016 1.0012e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2662  
   data-arc span      14175 days (38.81 yr)  
   first obs. used      1982-05-23  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:55:57  

Additional Information
 Jupiter MOID = 2.22715 au 
 T_jup = 3.435 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.816802155167964E-16 -1.727231258790103E-15 -2.439256516403944E-13 4.601005162915322E-16 -1.028266729457786E-13 3.965908871170774E-15
q -1.727231258790103E-15 4.419814542719726E-15 6.391145678147631E-13 -8.765052855120087E-16 2.678123476792529E-13 -9.861150939198739E-15
tp -2.439256516403944E-13 6.391145678147631E-13 8.900261214224868E-10 -1.895697788542167E-11 2.391292247582751E-10 -1.463512920666684E-11
node 4.601005162915322E-16 -8.765052855120087E-16 -1.895697788542167E-11 8.598275371463333E-12 -1.25591094148355E-11 2.318354126368475E-12
peri -1.028266729457786E-13 2.678123476792529E-13 2.391292247582751E-10 -1.25591094148355E-11 7.465547688637086E-11 -6.103399234961262E-12
i 3.965908871170774E-15 -9.861150939198739E-15 -1.463512920666684E-11 2.318354126368475E-12 -6.103399234961262E-12 1.002309295160076E-12

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.39   n/a E2021B10  
diameter diameter 5.005 km 0.102 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.303   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19502 (1998 KB51)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KB51 = 1982 KD3 = 1995 UG26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 15:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin