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19175 Peterpiot (1991 PP2)
Classification: Main-belt Asteroid          SPK-ID: 2019175
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03132811541864482 3.6784e-08  
a 2.523330404421033 9.7337e-09 au
q 2.444279218271955 9.6116e-08 au
i 3.170841149833998 3.2384e-06 deg
node 335.9618070904953 6.4957e-05 deg
peri 114.1432064741596 8.1848e-05 deg
M 28.92054705599956 4.9854e-05 deg
tp 2459278.884756818103
(2021-Mar-05.38475682)
0.00020283 TDB
period 1464.062469617052
4.01
8.4714e-06
2.319e-08
d
yr
n .2458911470452237 1.4228e-09 deg/d
Q 2.602381590570111 1.0039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1644  
   data-arc span      10868 days (29.75 yr)  
   first obs. used      1991-08-02  
   last obs. used      2021-05-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48063  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:07:37  

Additional Information
 Earth MOID = 1.46297 au 
 Jupiter MOID = 2.43886 au 
 T_jup = 3.452 
[ 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 14.48   n/a MPCxxxxx  
diameter diameter 3.695 km 0.442 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.296   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19175 Peterpiot           Discovered 1991 Aug. 2 by E. W. Elst at the European Southern Observatory.
Peter Piot (b. 1949), a Belgian physician, co-discovered the ebola virus in Zaire in 1976. In addition to providing the foundations of our understanding of HIV infection, he is the author of 16 books and 500 scientific articles. He has been the director of the London School of Hygiene and Tropical Medicine since 2010.
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 2014-10-08Last Updated: 2015-01-12

Alternate Designations
 1991 PP2 = 1991 PW31 = 1991 PY29 = 1998 FX65 = 1999 ND37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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