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91425 (1999 PM2)
Classification: Main-belt Asteroid          SPK-ID: 2091425
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08812820892252182 3.497e-08  
a 2.843796612567021 1.5293e-08 au
q 2.593177910561555 1.0019e-07 au
i 1.057986051373625 3.8958e-06 deg
node 328.8625840492683 0.00019614 deg
peri 36.83899098827851 0.00019722 deg
M 178.5112504610129 2.1716e-05 deg
tp 2458527.921015749648
(2019-Feb-13.42101575)
0.00010442 TDB
period 1751.64553227091
4.80
1.413e-05
3.869e-08
d
yr
n .205521033432649 1.6578e-09 deg/d
Q 3.094415314572487 1.6641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      996  
   data-arc span      7928 days (21.71 yr)  
   first obs. used      1999-08-07  
   last obs. used      2021-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53676  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:40:33  

Additional Information
 Earth MOID = 1.59051 au 
 Jupiter MOID = 2.33784 au 
 T_jup = 3.302 
[ 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 15.09   n/a MPCxxxxx  
diameter diameter 3.082 km 0.655 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91425 (1999 PM2)          Discovered 1999-Aug-07 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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