+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2770 Tsvet (1977 SM1) Classification: Main-belt Asteroid          SPK-ID: 2002770 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 46 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06335770516721453 1.9502e-08   a 2.169900456493576 5.6959e-09 au q 2.032420543128851 4.1881e-08 au i 2.859032511580986 3.4296e-07 deg node 38.74050416721648 1.812e-05 deg peri 135.1062252548251 2.6387e-05 deg M 35.45755115541631 1.3548e-05 deg tp 2459085.508859602270 (2020-Aug-24.00885960) 4.3747e-05 TDB period 1167.503372179705 3.20 4.597e-06 1.259e-08 d yr n .3083502870984325 1.2141e-09 deg/d Q 2.3073803698583 6.0568e-09 au   Orbit Determination Parameters    # obs. used (total)      2832      data-arc span      24865 days (68.08 yr)      first obs. used      1953-02-15      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4205      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 14:14:26   Additional Information  Earth MOID = 1.03717 au   Jupiter MOID = 2.65131 au   T_jup = 3.685  [ 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 12.89   n/a E2021B10   diameter diameter 7.245 km 0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 7.82 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Franco, L.; Papini, R. (2014) Minor Planet Bull. 41, 170.] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] geometric albedo albedo 0.135   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   2770 Tsvet (1977 SM1)          Discovered 1977-Sep-19 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1977 SM1 = 1966 DN = 1974 WN = 1976 KS = 1977 TL4 = 1977 UU1 = 1979 HM1 = 1980 TB10 = 1982 DZ2 = 1982 HR2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-11 14:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin