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4345 Rachmaninoff (1988 CM2)
Classification: Main-belt Asteroid          SPK-ID: 2004345
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03626883877286636 2.7903e-08  
a 2.902636626586976 1.0631e-08 au
q 2.797361366761076 8.0727e-08 au
i 2.862760757235724 3.1468e-06 deg
node 136.2991385672851 5.5588e-05 deg
peri 349.8712647922827 7.1812e-05 deg
M 228.0771872780973 4.711e-05 deg
tp 2459862.418981041877
(2022-Oct-09.91898104)
0.00023788 TDB
period 1806.289816435314
4.95
9.9238e-06
2.717e-08
d
yr
n .1993035650892693 1.095e-09 deg/d
Q 3.007911886412876 1.1017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3163  
   data-arc span      25364 days (69.44 yr)  
   first obs. used      1951-08-11  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4528  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:17:17  

Additional Information
 Earth MOID = 1.8124 au 
 Jupiter MOID = 1.9947 au 
 T_jup = 3.284 
[ 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 12.6   n/a MPO448957  
diameter diameter 9.506 km 0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.484230 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.214   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4345 Rachmaninoff (1988 CM2)          Discovered 1988-Feb-11 by Elst, E. W. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1988 CM2 = 1979 HD3 = 1981 UR19 = 1986 TJ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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