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22644 Matejbel (1998 OZ4)
Classification: Main-belt Asteroid          SPK-ID: 2022644
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233684441133223 4.6499e-08  
a 3.146899771387382 2.5455e-08 au
q 2.758671642810751 1.5237e-07 au
i 10.13376680865055 5.9385e-06 deg
node 205.7720148497498 2.2598e-05 deg
peri 212.6132211062865 3.202e-05 deg
M 257.2814791907406 2.5002e-05 deg
tp 2459582.293746904988
(2022-Jan-02.79374690)
0.00014511 TDB
period 2039.026138963982
5.58
2.4741e-05
6.774e-08
d
yr
n .1765548725054177 2.1422e-09 deg/d
Q 3.535127899964013 2.8596e-08 au
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      9686 days (26.52 yr)  
   first obs. used      1993-10-12  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54166  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:33:05  

Additional Information
 Earth MOID = 1.77628 au 
 Jupiter MOID = 1.87389 au 
 T_jup = 3.173 
[ 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 14.3   n/a MPO435911  

22644 Matejbel           Discovered 1998 July 27 by P. Pravec and U. Babiaková at Ondřejov.
Matej Bel (1684-1749), Slovak historian and a great scholar of the eighteenth century, was a pioneer of collaborative research, member of numerous scholarly societies and author of the book Notitia Hungariae novae historico-geographica. The University of Banská Bystrica, Slovakia, bears his name.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
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