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19630 Janebell (1999 RT33)
Classification: Main-belt Asteroid          SPK-ID: 2019630
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03528494869909247 3.3162e-08  
a 2.612265549534378 1.2049e-08 au
q 2.520091893630651 8.6137e-08 au
i 15.67736487919884 3.6842e-06 deg
node 136.8450523700894 1.2987e-05 deg
peri 342.02207108485 6.6853e-05 deg
M 234.7727040477459 6.8092e-05 deg
tp 2459736.939703148866
(2022-Jun-06.43970315)
0.00029339 TDB
period 1542.142163695866
4.22
1.067e-05
2.921e-08
d
yr
n .2334415130296623 1.6151e-09 deg/d
Q 2.704439205438105 1.2474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      16388 days (44.87 yr)  
   first obs. used      1976-03-02  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48438  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:00:00  

Additional Information
 Earth MOID = 1.53727 au 
 Jupiter MOID = 2.32942 au 
 T_jup = 3.355 
[ show covariance matrix ]

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 14.15   n/a E2021B10  
diameter diameter 4.202 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19630 Janebell           Discovered 1999 Sept. 2 by G. Bell at Farpoint Observatory.
Jane Bell (b. 1945), wife of the discoverer, has encouraged his astronomical interests and been very understanding of his nights away from home.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1999 RT33 = 1976 EA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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