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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150578766044098 9.6774e-09  
a 2.271115144813499 5.5288e-09 au
q 2.009805458727142 2.3302e-08 au
i 5.77665757925587 8.8457e-07 deg
node 199.0989422907847 7.6393e-06 deg
peri 333.3222091657884 1.1207e-05 deg
M 116.158966738063 8.7381e-06 deg
tp 2458993.126469400237
(2020-May-23.62646940)
3.0401e-05 TDB
period 1250.13569846374
3.42
4.565e-06
1.25e-08
d
yr
n .2879687384676678 1.0515e-09 deg/d
Q 2.532424830899857 6.1649e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2371  
   data-arc span      24784 days (67.85 yr)  
   first obs. used      1953-10-01  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45931  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 19:18:11  

Additional Information
 Earth MOID = 1.01713 au 
 Jupiter MOID = 2.43575 au 
 T_jup = 3.597 
[ 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 14.27   n/a E2021B10  
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 ]
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