+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   294739 (2008 CM) Classification: Apollo [NEO, PHA]          SPK-ID: 2294739 [ 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 290 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4081239355029284 1.5944e-08   a 1.565854304213093 4.9373e-09 au q .9267916831534458 2.5533e-08 au i 36.014707070805 3.6508e-06 deg node 279.5622987839249 5.7736e-07 deg peri 130.6791209114498 4.6257e-06 deg M 112.0872110029241 4.5788e-06 deg tp 2458777.667252676590 (2019-Oct-21.16725268) 8.1149e-06 TDB period 715.6908296552664 1.96 3.385e-06 9.268e-09 d yr n .503010497107256 2.3791e-09 deg/d Q 2.20491692527274 6.9524e-09 au   Orbit Determination Parameters    # obs. used (total)      1397      # delay obs. used      7      # Doppler obs. used      1      data-arc span      4353 days (11.92 yr)      first obs. used      2008-02-02      last obs. used      2020-01-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .34919      source      ORB      producer      Otto Matic      solution date      2020-Jul-09 06:13:33   Additional Information  Earth MOID = .0439887 au   Jupiter MOID = 3.31723 au   T_jup = 4.133  [ 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 17.1   n/a MPO437318   diameter diameter 0.740 km 0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   rotation period rot_per 3.05785 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Warner, B.D. (2014) Minor Planet Bull. 41, 157-168.] [Benishek, V. (2016) Minor Planet Bull. 43, 186-188.] [Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.] [Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.425   0.315 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   294739 (2008 CM)          Discovered 2008-Feb-02 by CSS at Catalina Reference: 20110912/Numbers.arc Last Updated: 2011-09-14 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-11 13:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin