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26112 (1991 PG18)
Classification: Outer Main-belt Asteroid          SPK-ID: 2026112
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2341476649653928 4.6441e-08  
a 3.256745335396851 2.607e-08 au
q 2.494186019726743 1.5418e-07 au
i 2.070689756725784 4.3435e-06 deg
node 281.685707283208 0.00018341 deg
peri 45.72112386102781 0.00018416 deg
M 336.5507760734765 2.0404e-05 deg
tp 2459140.329916944462
(2020-Oct-17.82991694)
0.00012254 TDB
period 2146.713693286368
5.88
2.5776e-05
7.057e-08
d
yr
n .1676981896215895 2.0136e-09 deg/d
Q 4.019304651066959 3.2174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1066  
   data-arc span      10138 days (27.76 yr)  
   first obs. used      1991-08-08  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53782  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:23:43  

Additional Information
 Earth MOID = 1.48328 au 
 Jupiter MOID = 1.35102 au 
 T_jup = 3.135 
[ 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 13.7   n/a MPO435945  
diameter diameter 9.107 km 0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26112 (1991 PG18)          Discovered 1991-Aug-08 by Holt, H. E. at Palomar
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PG18 = 2000 CY25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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