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19894 (5124 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019894
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160658590630688 3.8893e-08  
a 2.683319051631974 1.1007e-08 au
q 2.37187732076401 1.0145e-07 au
i 11.89168593734746 4.2381e-06 deg
node 236.5274238526001 1.6567e-05 deg
peri 323.9202190457059 2.3191e-05 deg
M 76.18522025384807 1.4952e-05 deg
tp 2458860.737749386741
(2020-Jan-12.23774939)		 6.6711e-05 TDB
period 1605.487387359691
4.40		 9.8789e-06
2.705e-08		 d
yr
n .2242309736185714 1.3797e-09 deg/d
Q 2.994760782499938 1.2285e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1599  
   data-arc span      17163 days (46.99 yr)  
   first obs. used      1973-09-20  
   last obs. used      2020-09-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46922  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:37  

Additional Information
 Earth MOID = 1.3767 au 
 Jupiter MOID = 2.02209 au 
 T_jup = 3.335 
[ 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 13.97   n/a E2021B10  
diameter diameter 5.292 km 0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19894 (5124 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 5124 T-2 = 1976 JT7 = 1998 KR21 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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