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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
7687 Matthias (2099 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2007687
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1152126979780823 3.9219e-08  
a 2.270334351133248 6.9016e-09 au
q 2.008763005226867 8.9086e-08 au
i 5.776802232776046 4.6814e-06 deg
node 199.1209684053333 3.2868e-05 deg
peri 333.0741053552466 3.6889e-05 deg
M 2.290643576180583 1.6654e-05 deg
tp 2458992.549614729826
(2020-May-23.04961473)
5.7802e-05 TDB
period 1249.491071865019
3.42
5.6975e-06
1.56e-08
d
yr
n .2881173048020708 1.3138e-09 deg/d
Q 2.531905697039628 7.6967e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1832  
   data-arc span      24204 days (66.27 yr)  
   first obs. used      1953-10-01  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:56:57  

Additional Information
 Earth MOID = 1.01537 au 
 Jupiter MOID = 2.43838 au 
 T_jup = 3.598 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO502226  
diameter diameter 3.488 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.333   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7687 Matthias           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in honor of Matthias Busch (b. 1968), amateur astronomer at the Starkenburg Observatory in Heppenheim who has made a substantial contribution to the astrometry of minor planets. He is an ardent follow-up observer of near-earth objects and a keen developer of astronomical software. Name proposed by L. D. Schmadel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 2099 P-L = 1986 EH2 = 1993 GK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-19 17:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin