Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2341476829167576 4.0598e-08  
a 3.256745362254728 2.0354e-08 au
q 2.494185981832887 1.4094e-07 au
i 2.070692776321603 3.7731e-06 deg
node 281.6857160656249 0.00011948 deg
peri 45.72115522037775 0.00011984 deg
M 336.5507344074621 7.9484e-06 deg
tp 2459140.330167132543
(2020-Oct-17.83016713)
4.7225e-05 TDB
period 2146.713719841795
5.88
2.0125e-05
5.51e-08
d
yr
n .1676981875471177 1.5721e-09 deg/d
Q 4.019304742676569 2.512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1451  
   data-arc span      10692 days (29.27 yr)  
   first obs. used      1991-08-08  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49534  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 20:50:12  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-28 13:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin