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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449905401279549 4.1734e-08  
a 2.739171752471224 1.5572e-08 au
q 2.342017760577185 1.1601e-07 au
i 16.86058812027538 5.8903e-06 deg
node 320.5191880135928 1.1268e-05 deg
peri 313.9432746972134 2.0514e-05 deg
M 341.3791185197034 1.7171e-05 deg
tp 2459482.149544680241
(2021-Sep-24.64954468)
7.9064e-05 TDB
period 1655.874138800196
4.53
1.412e-05
3.866e-08
d
yr
n .2174078280254118 1.8539e-09 deg/d
Q 3.136325744365263 1.7829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1124  
   data-arc span      8050 days (22.04 yr)  
   first obs. used      1999-07-16  
   last obs. used      2021-07-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:17:32  

Additional Information
 Earth MOID = 1.35536 au 
 Jupiter MOID = 2.18576 au 
 T_jup = 3.274 
[ 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 14.51   n/a MPO637243  
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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