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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03546183057966507 3.3249e-08  
a 2.611687834211354 1.1916e-08 au
q 2.519072602707578 8.6445e-08 au
i 15.67755309012103 3.6843e-06 deg
node 136.8456705153512 1.2988e-05 deg
peri 342.3240182868852 6.6498e-05 deg
M 280.2459920855061 6.7875e-05 deg
tp 2459738.031167093132
(2022-Jun-07.53116709)
0.00029174 TDB
period 1541.630613540403
4.22
1.0551e-05
2.889e-08
d
yr
n .2335189745442644 1.5982e-09 deg/d
Q 2.704303065715129 1.2339e-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 = 1.53682 au 
 Jupiter MOID = 2.32896 au 
 T_jup = 3.356 
[ 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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