+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7259 Gaithersburg (1994 EG1) Classification: Main-belt Asteroid          SPK-ID: 2007259 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .115728573247148 2.7471e-08   a 2.646869731766428 9.3857e-09 au q 2.340551274138038 7.2455e-08 au i 13.75116476352085 3.5248e-06 deg node 166.3198502974092 1.33e-05 deg peri 332.5338476634209 2.1421e-05 deg M 44.99463181417102 1.5866e-05 deg tp 2458803.912690069685 (2019-Nov-16.41269007) 6.9391e-05 TDB period 1572.886113774669 4.31 8.3661e-06 2.291e-08 d yr n .2288786180049991 1.2174e-09 deg/d Q 2.953188189394818 1.0472e-08 au   Orbit Determination Parameters    # obs. used (total)      2386      data-arc span      25305 days (69.28 yr)      first obs. used      1951-03-06      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43206      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 16:39:14   Additional Information  Earth MOID = 1.36008 au   Jupiter MOID = 2.06855 au   T_jup = 3.342  [ 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 13.2   n/a MPO431583   7259 Gaithersburg           Discovered 1994 Mar. 6 by Y. Shimizu and T. Urata at the Nachi-Katsuura Observatory. Gaithersburg, Maryland, is a city to the north of Washington, D.C. Located at the agreed latitude of +39°08', one of the six stations of the International Latitude Service was established there in 1899, and it is now the home of the National Institute of Standards and Technology. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020128/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1994 EG1 = 1938 EN = 1951 EE = 1977 EC4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 07:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin