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19891 (3326 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1847616185978932 3.7756e-08  
a 2.719328468587571 1.2325e-08 au
q 2.216900939232001 1.0185e-07 au
i 3.592545956044202 3.6759e-06 deg
node 57.61606794068518 6.7587e-05 deg
peri 272.4186016342173 6.8301e-05 deg
M 253.4994001594815 1.1167e-05 deg
tp 2459881.052104291566
(2022-Oct-28.55210429)
5.2282e-05 TDB
period 1637.913380827719
4.48
1.1135e-05
3.049e-08
d
yr
n .2197918426052995 1.4942e-09 deg/d
Q 3.221755997943141 1.4602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      932  
   data-arc span      17406 days (47.66 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-05-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56697  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:17:09  

Additional Information
 Earth MOID = 1.20887 au 
 Jupiter MOID = 2.14234 au 
 T_jup = 3.332 
[ 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 15.24   n/a E2021B10  
diameter diameter 3.910 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19891 (3326 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
 3326 T-2 = 1978 WA5 = 2000 SF63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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