+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1832 Mrkos (1969 PC) Classification: Outer Main-belt Asteroid          SPK-ID: 2001832 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1021478466515809 4.0528e-08   a 3.220272622256411 1.7422e-08 au q 2.891328708261879 1.3503e-07 au i 14.95396405206501 5.2638e-06 deg node 303.3579067982931 1.5972e-05 deg peri 80.82016295235104 2.9934e-05 deg M 258.6992364105627 2.6294e-05 deg tp 2459594.446879327755 (2022-Jan-14.94687933) 0.00015645 TDB period 2110.752860902294 5.78 1.7129e-05 4.69e-08 d yr n .1705552585848961 1.3841e-09 deg/d Q 3.549216536250943 1.9201e-08 au   Orbit Determination Parameters    # obs. used (total)      2216      data-arc span      30594 days (83.76 yr)      first obs. used      1937-02-05      last obs. used      2020-11-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41204      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:02:57   Additional Information  Earth MOID = 1.94186 au   Jupiter MOID = 1.9605 au   T_jup = 3.128  [ 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 11.2   n/a MPO473789   diameter diameter 29.351 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 13.64 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D. (2005) Minor Planet Bull. 32, 29-32.] geometric albedo albedo 0.068   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1832 Mrkos (1969 PC)          Discovered 1969-Aug-11 by Chernykh, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1969 PC = 1937 CJ  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin