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19176 (1991 PK3)
Classification: Main-belt Asteroid          SPK-ID: 2019176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081780453596971 1.9005e-08  
a 2.539115872698701 1.0938e-08 au
q 2.264439280648374 4.5283e-08 au
i 2.379069904809641 1.4492e-06 deg
node 57.78876649088826 2.6485e-05 deg
peri 288.0665109940786 3.8689e-05 deg
M 65.23937268193953 1.7754e-05 deg
tp 2458932.688339003465
(2020-Mar-24.18833900)
7.3428e-05 TDB
period 1477.82227197048
4.05
9.5494e-06
2.614e-08
d
yr
n .2436016879891706 1.5741e-09 deg/d
Q 2.813792464749028 1.2121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1857  
   data-arc span      18076 days (49.49 yr)  
   first obs. used      1971-09-16  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47413  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:47:54  

Additional Information
 Earth MOID = 1.25676 au 
 Jupiter MOID = 2.55288 au 
 T_jup = 3.437 
[ 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 13.94   n/a E2021B10  
diameter diameter 4.740 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.137   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19176 (1991 PK3)          Discovered 1991-Aug-02 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PK3 = 1971 SX = 1992 YX1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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