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1969 Alain (1935 CG)
Classification: Main-belt Asteroid          SPK-ID: 2001969
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1582078886672946 4.1091e-08  
a 3.087163854174602 1.3493e-08 au
q 2.598750178835651 1.2657e-07 au
i 3.339211654808436 4.6099e-06 deg
node 209.1858958295302 5.9687e-05 deg
peri 346.9354402220793 6.0571e-05 deg
M 130.7741394730514 1.1058e-05 deg
tp 2457880.790362843309
(2017-May-07.29036284)
5.9277e-05 TDB
period 1981.243924987176
5.42
1.2989e-05
3.556e-08
d
yr
n .1817040271819787 1.1912e-09 deg/d
Q 3.575577529513554 1.5628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2435  
   data-arc span      32718 days (89.58 yr)  
   first obs. used      1930-03-30  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47545  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:10:37  

Additional Information
 Earth MOID = 1.59783 au 
 Jupiter MOID = 1.38875 au 
 T_jup = 3.204 
[ 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 11.8   n/a MPO416728  
diameter diameter 22.895 km 0.406 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 32.4 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hayes-Gehrke, M.N.; Leffler, T.; Hampton, K.; Chavis, J.; et al. (2018) Minor Planet Bull. 45, 1.]
geometric albedo albedo 0.071   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1969 Alain (1935 CG)          Discovered 1935-Feb-03 by Arend, S. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1935 CG = 1930 FZ = 1952 HW3 = 1952 KH1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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