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91424 (1999 PT1)
Classification: Main-belt Asteroid          SPK-ID: 2091424
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449902878915688 4.2784e-08  
a 2.740007919530667 1.5901e-08 au
q 2.342733382452737 1.1833e-07 au
i 16.85991520816752 6.0617e-06 deg
node 320.5177263523763 1.1279e-05 deg
peri 313.8057132789642 2.0969e-05 deg
M 255.4325804254823 1.7849e-05 deg
tp 2459481.693823530676
(2021-Sep-24.19382353)
8.2718e-05 TDB
period 1656.632411662363
4.54
1.4421e-05
3.948e-08
d
yr
n .2173083162357996 1.8917e-09 deg/d
Q 3.137282456608597 1.8207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      7589 days (20.78 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51907  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:40:51  

Additional Information
 Earth MOID = 1.35656 au 
 Jupiter MOID = 2.18631 au 
 T_jup = 3.273 
[ 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 14.4   n/a MPO432452  
diameter diameter 5.659 km 0.624 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91424 (1999 PT1)          Discovered 1999-Aug-10 by Nomen, J. at Ametlla de Mar
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 PT1 = 2002 AA118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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