+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227310 Scottkardel (2005 TN29) Classification: Main-belt Asteroid          SPK-ID: 2227310 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1369651946919508 5.7761e-08   a 2.545864368813032 1.6391e-08 au q 2.197169559879255 1.5039e-07 au i 14.69539979092239 6.6831e-06 deg node 214.5369778724089 1.6026e-05 deg peri 158.8102151870732 2.3515e-05 deg M 279.845976468031 1.9516e-05 deg tp 2459530.849875990385 (2021-Nov-12.34987599) 8.2243e-05 TDB period 1483.717848663028 4.06 1.4329e-05 3.923e-08 d yr n .2426337327709541 2.3432e-09 deg/d Q 2.89455917774681 1.8636e-08 au   Orbit Determination Parameters    # obs. used (total)      331      data-arc span      8213 days (22.49 yr)      first obs. used      1997-11-29      last obs. used      2020-05-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .62477      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 00:39:16   Additional Information  Earth MOID = 1.2039 au   Jupiter MOID = 2.58033 au   T_jup = 3.384  [ 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 16.93   n/a E2021B55   227310 Scottkardel           Discovered 2005 Oct. 2 by R. A. Kowalski at the Catalina Sky Survey. Named in honor of W. Scott Kardel (b 1962) for his service as the Managing Director of the International Dark Sky Association and his efforts to combat light pollution and protect the nighttime environment. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2019-12-12 Last Updated: 2019-12-13 [ show close-approach data ] Alternate Designations  2005 TN29 = 2001 UG145  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 09:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin