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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08779249085164707 3.5198e-08  
a 2.844350012838062 1.6676e-08 au
q 2.594637440357094 1.0169e-07 au
i 1.058048763642445 3.9303e-06 deg
node 328.8644011974401 0.00021671 deg
peri 36.80401833499629 0.0002179 deg
M 97.20060350133087 2.2877e-05 deg
tp 2458527.414710464845
(2019-Feb-12.91471046)
0.0001113 TDB
period 1752.156860119945
4.80
1.5409e-05
4.219e-08
d
yr
n .2054610567089045 1.8069e-09 deg/d
Q 3.09406258531903 1.814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      7483 days (20.49 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:29:51  

Additional Information
 Earth MOID = 1.59278 au 
 Jupiter MOID = 2.33846 au 
 T_jup = 3.302 
[ 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 15.0   n/a MPO449561  
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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