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JPL Small-Body Database Browser
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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449902952866387 4.3171e-08  
a 2.740007927258751 1.7065e-08 au
q 2.342733368797773 1.1881e-07 au
i 16.85991525376417 6.0968e-06 deg
node 320.5177253687318 1.2371e-05 deg
peri 313.8057070530151 2.2347e-05 deg
M 255.4325845609544 1.821e-05 deg
tp 2459481.693806536022
(2021-Sep-24.19380654)
8.4064e-05 TDB
period 1656.632418671061
4.54
1.5476e-05
4.237e-08
d
yr
n .2173083153164354 2.0301e-09 deg/d
Q 3.137282485719727 1.9539e-08 au
  Orbit Determination Parameters
   # obs. used (total)      933  
   data-arc span      7480 days (20.48 yr)  
   first obs. used      1999-07-16  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53767  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:02:47  

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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