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19502 (1998 KB51)
Classification: Main-belt Asteroid          SPK-ID: 2019502
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084821051204716 2.6236e-08  
a 2.517172063336413 7.4063e-09 au
q 2.244103938955238 6.6817e-08 au
i 8.492768906872689 1.0009e-06 deg
node 178.671406984171 2.9344e-06 deg
peri 62.37117913599054 8.5755e-06 deg
M 235.4181248642819 8.0912e-06 deg
tp 2459705.300927412088
(2022-May-05.80092741)
3.3831e-05 TDB
period 1458.706041070412
3.99
6.4379e-06
1.763e-08
d
yr
n .2467940694451561 1.0892e-09 deg/d
Q 2.790240187717589 8.2097e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2658  
   data-arc span      14165 days (38.78 yr)  
   first obs. used      1982-05-23  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45673  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:17:10  

Additional Information
 Earth MOID = 1.24607 au 
 Jupiter MOID = 2.22715 au 
 T_jup = 3.435 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457072.5 (2015-Feb-19.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1087161492133892 2.6134e-08  
q 2.243288493763639 6.654e-08 au
tp 2456790.275045142843
(2014-May-12.77504514)
2.9837e-05 TDB
node 178.7083962495539 2.9324e-06 deg
peri 62.7515823769737 8.6424e-06 deg
i 8.495663024950096 1.0013e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2658  
   data-arc span      14165 days (38.78 yr)  
   first obs. used      1982-05-23  
   last obs. used      2021-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45673  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-17 02:17:10  

Additional Information
 Jupiter MOID = 2.22715 au 
 T_jup = 3.435 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.830018588351994E-16 -1.73042622166981E-15 -2.444063331495807E-13 4.613269704248126E-16 -1.03026086450999E-13 3.978495171159806E-15
q -1.73042622166981E-15 4.427538494635519E-15 6.402764671430761E-13 -8.794660959499976E-16 2.682945060735276E-13 -9.891596741681925E-15
tp -2.444063331495807E-13 6.402764671430761E-13 8.902330409823075E-10 -1.896171838840767E-11 2.39213634053177E-10 -1.464134028496328E-11
node 4.613269704248126E-16 -8.794660959499976E-16 -1.896171838840767E-11 8.599177658915719E-12 -1.256121080249628E-11 2.318695427755864E-12
peri -1.03026086450999E-13 2.682945060735276E-13 2.39213634053177E-10 -1.256121080249628E-11 7.469030088541187E-11 -6.106015476364447E-12
i 3.978495171159806E-15 -9.891596741681925E-15 -1.464134028496328E-11 2.318695427755864E-12 -6.106015476364447E-12 1.002550544271582E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1998-Oct-21 03:38 < 00:01 Hebe 0.0259019426763934 0.0259006116315264 0.0259032737356277 6.34720662074443 6.34720658293131 2451107.651317114 0.295154703670042 77.9164338766599 44.2891896047595 39.5719459429547 67626.9542683743 T 40 CATAB v2.0f-lin.ifort 2021-Mar-17 02:18:13 2021-Mar-17 02:18

Alternate Designations
 1998 KB51 = 1982 KD3 = 1995 UG26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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