Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
7110 Johnpearse (1983 XH1)
Classification: Main-belt Asteroid          SPK-ID: 2007110
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205534226026696 4.483e-08  
a 2.798196535045314 2.0702e-08 AU
q 2.223071375944193 1.2298e-07 AU
i 7.659976248450765 6.8968e-06 deg
node 173.6663359450979 3.5579e-05 deg
peri 267.1260215248326 3.9735e-05 deg
M 171.2792333546931 1.7116e-05 deg
tp 2455987.074171726911
(2012-Feb-29.57417173)
7.9595e-05 JED
period 1709.683611041738
4.68
1.8973e-05
5.195e-08
d
yr
n .2105652751626052 2.3367e-09 deg/d
Q 3.373321694146435 2.4956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1063  
   data-arc span      13079 days (35.81 yr)  
   first obs. used      1978-09-12  
   last obs. used      2014-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5391  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:16:15  

Additional Information
 Earth MOID = 1.25367 AU 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO263412  
diameter diameter 14 km n/a DASTCOM value unverified
geometric albedo albedo 0.0625   0.013 EAR-A-5-DDR-ALBEDOS-V1.0:IMPS IMPS quality code 2: from the PDS IMPS singleton file
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7110 Johnpearse           Discovered 1983 Dec. 7 at the Perth Observatory, Bickley.
John Marshall Pearse (b. 1930) was a mechanical technician at the Perth Observatory from 1981 to 2006. Before working at the observatory he was employed by the Western Australian state shipping service, and he later built fishing boats for a company he co-owned.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05

[ show close-approach data ]
Alternate Designations
 1983 XH1 = 1975 BM1 = 1978 RV2 = 1978 TN3 = 1987 QE3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-01 15:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin