+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   57868 Pupin (2001 YD) Classification: Main-belt Asteroid          SPK-ID: 2057868 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2536943569565756 3.7457e-08   a 2.382244915790333 7.376e-09 au q 1.777882823765834 8.7936e-08 au i 4.228838201982893 3.3673e-06 deg node 287.6242264944875 4.9301e-05 deg peri 46.0785096025602 4.9704e-05 deg M 160.434680258017 6.4656e-06 deg tp 2458601.986718360809 (2019-Apr-28.48671836) 2.2702e-05 TDB period 1343.006269240481 3.68 6.2374e-06 1.708e-08 d yr n .2680553384189287 1.245e-09 deg/d Q 2.986607007814833 9.2473e-09 au   Orbit Determination Parameters    # obs. used (total)      1423      data-arc span      8510 days (23.30 yr)      first obs. used      1997-11-26      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51583      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 11:26:51   Additional Information  Earth MOID = .768875 au   Jupiter MOID = 2.40217 au   T_jup = 3.490  [ 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 15.3   n/a MPO449373   diameter diameter 5.725 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 108.10 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Benishek, V.; Pilcher, F. (2016) Minor Planet Bull. 43, 100-101.] geometric albedo albedo 0.045   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   57868 Pupin           Discovered 2001 Dec. 17 by NEAT at Palomar. Mihajlo Pupin (1858-1935) was a Serbian-American physicist and humanitarian. He greatly improved long-distance telephone transmission and the sensitivity of X-ray detection, and worked for Serbian emigres. Name suggested by V. Benishek and F. Pilcher, who obtained the first rotational lightcurves for this object. 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 2016-03-23 Last Updated: 2016-03-24 [ show close-approach data ] Alternate Designations  2001 YD = 1997 WU46  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 01:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin