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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03651586933590292 2.7584e-08  
a 2.901850135918947 1.0478e-08 au
q 2.795886555523359 7.9755e-08 au
i 2.862851424301747 3.097e-06 deg
node 136.301133238322 5.5478e-05 deg
peri 350.171430621979 7.1513e-05 deg
M 266.8627446594736 4.6867e-05 deg
tp 2459863.623623856066
(2022-Oct-11.12362386)
0.00023612 TDB
period 1805.555724971114
4.94
9.7792e-06
2.677e-08
d
yr
n .1993845966763277 1.0799e-09 deg/d
Q 3.007813716314536 1.0861e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3184  
   data-arc span      25382 days (69.49 yr)  
   first obs. used      1951-08-11  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45434  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 14:22:41  

Additional Information
 Earth MOID = 1.81154 au 
 Jupiter MOID = 1.99393 au 
 T_jup = 3.284 
[ 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 12.63   n/a MPCxxxxx  
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

Alternate Designations
 1988 CM2 = 1979 HD3 = 1981 UR19 = 1986 TJ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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