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JPL Small-Body Database Browser
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22283 Pytheas (1986 PY)
Classification: Mars-crossing Asteroid          SPK-ID: 2022283
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2464446842253445 4.8368e-08  
a 2.188940030612697 7.0638e-09 au
q 1.649487395980135 1.0691e-07 au
i 7.97535074334713 5.494e-06 deg
node 146.0081547570325 2.9342e-05 deg
peri 195.6746813784661 3.0571e-05 deg
M 24.64187723143377 1.19e-05 deg
tp 2458519.530676456382
(2019-Feb-05.03067646)
3.8855e-05 TDB
period 1182.903242392567
3.24
5.7259e-06
1.568e-08
d
yr
n .3043359651900656 1.4732e-09 deg/d
Q 2.728392665245259 8.8046e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1194  
   data-arc span      12139 days (33.23 yr)  
   first obs. used      1986-08-06  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:31:56  

Additional Information
 Earth MOID = .641459 au 
 Jupiter MOID = 2.67267 au 
 T_jup = 3.622 
[ 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 14.8   n/a MPO449117  
rotation period rot_per 5.730 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 380-386.]

22283 Pytheas           Discovered 1986 Aug. 6 by E. W. Elst and V. G. Ivanova at Smolyan.
Pytheas (fl. 4th century BC) was a geographer from the Greek colony of Massalia (Marseille). In 325 BC he made a voyage exploring Northwestern Europe and visiting a considerable part of Great Britain. Pytheas is also known as the first scientific investigator and reporter of the Arctic polar ice and the Germanic tribes.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-03-05Last Updated: 2015-03-09

[ show close-approach data ]
Alternate Designations
 1986 PY = 1998 FN90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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