+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14772 (4195 T-1) Classification: Main-belt Asteroid          SPK-ID: 2014772 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01547120876933442 4.025e-08   a 2.862787247543464 1.3289e-08 au q 2.818496468374531 1.1454e-07 au i 3.18543317934247 4.054e-06 deg node 95.65478521976009 7.019e-05 deg peri 142.2299764859575 0.00013297 deg M 50.01227667148887 0.00011197 deg tp 2458954.714554449688 (2020-Apr-15.21455445) 0.00055056 TDB period 1769.220805109931 4.84 1.2319e-05 3.373e-08 d yr n .2034794068440944 1.4168e-09 deg/d Q 2.907078026712397 1.3495e-08 au   Orbit Determination Parameters    # obs. used (total)      1707      data-arc span      18049 days (49.42 yr)      first obs. used      1971-03-24      last obs. used      2020-08-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51597      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:38:49   Additional Information  Earth MOID = 1.80434 au   Jupiter MOID = 2.06131 au   T_jup = 3.299  [ 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 14.05   n/a E2020-QM5   diameter diameter 4.582 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.305   0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14772 (4195 T-1)          Discovered 1971-Mar-26 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  4195 T-1 = 1991 LD2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 09:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin