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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03100777422077434 3.7117e-08  
a 2.522432418821861 1.1531e-08 au
q 2.444217403891871 9.6398e-08 au
i 3.170858942079831 4.0582e-06 deg
node 335.9648730506962 6.591e-05 deg
peri 114.4315149166342 9.2374e-05 deg
M 291.2339191440187 6.7241e-05 deg
tp 2459280.011389258082
(2021-Mar-06.51138926)
0.00027385 TDB
period 1463.28100831643
4.01
1.0034e-05
2.747e-08
d
yr
n .2460224645532686 1.687e-09 deg/d
Q 2.600647433751852 1.1889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1297  
   data-arc span      10319 days (28.25 yr)  
   first obs. used      1991-08-02  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51135  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 23:58:11  

Additional Information
 Earth MOID = 1.46288 au 
 Jupiter MOID = 2.441 au 
 T_jup = 3.453 
[ 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 14.4   n/a MPO347673  
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

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