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 ]  
26305 (1998 SH146)
Classification: Main-belt Asteroid          SPK-ID: 2026305
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1888087225060409 3.3419e-08  
a 2.270391410515479 8.8751e-09 au
q 1.841721708707363 7.5929e-08 au
i 6.7146796488944 4.631e-06 deg
node 198.8883527447219 2.8675e-05 deg
peri 115.8020918102651 3.1189e-05 deg
M 226.0560264685319 1.1889e-05 deg
tp 2459665.411412362591
(2022-Mar-26.91141236)
4.1992e-05 TDB
period 1249.538176581061
3.42
7.3268e-06
2.006e-08
d
yr
n .288106443442183 1.6893e-09 deg/d
Q 2.699061112323595 1.0551e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1150  
   data-arc span      10718 days (29.34 yr)  
   first obs. used      1991-09-14  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53388  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 19:14:42  

Additional Information
 Earth MOID = .838558 au 
 Jupiter MOID = 2.61645 au 
 T_jup = 3.580 
[ 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 15.27   n/a E2021B10  
diameter diameter 2.724 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26305 (1998 SH146)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SH146 = 1991 RL36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 22:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin