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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1578201257896487 4.1062e-08  
a 3.088104153578995 1.3344e-08 au
q 2.600739167609621 1.2646e-07 au
i 3.338656637129621 4.6025e-06 deg
node 209.189203861175 5.8654e-05 deg
peri 346.9017358581105 5.9523e-05 deg
M 203.4897439635171 1.1209e-05 deg
tp 2459862.240763754760
(2022-Oct-09.74076375)
6.43e-05 TDB
period 1982.149175447001
5.43
1.2848e-05
3.518e-08
d
yr
n .1816210426840428 1.1772e-09 deg/d
Q 3.575469139548368 1.545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2547  
   data-arc span      32817 days (89.85 yr)  
   first obs. used      1930-03-30  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4704  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:09:10  

Additional Information
 Earth MOID = 1.59948 au 
 Jupiter MOID = 1.38774 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 11.9   n/a MPO502172  
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-August); 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1916-Dec-03 07:44 00:02 Jupiter 1.46764334759378 1.46764227855934 1.46764441664089 1.47516769945963 1.01086976558504 2421200.822333439 2.28142992266471 411.581598316362 127.533023864711 -46.5763022760896 2131186.23747633 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
1926-Sep-05 01:11 00:02 Jupiter 1.72144615481108 1.72144476336806 1.72144754625322 1.92684174311088 1.65185853066536 2424763.549607844 2.10106225996488 98.9043836529807 27.5127781452309 73.6053164591121 1599973.94644533 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
1977-Jun-25 23:40 < 00:01 Jupiter 1.85304499621415 1.85304422518362 1.85304576724446 2.6795194854502 2.50312392222162 2443320.485873678 0.851235460213887 48.2578025442834 20.9974220969049 77.100561640149 2046179.07725066 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
1987-Apr-08 03:07 < 00:01 Jupiter 1.41456746400603 1.41456705702134 1.41456787099314 1.1820154278324 0.446754328235278 2446893.629583323 0.621926725754693 2579.37113136071 339.797713381152 0.24407772259981 1221802.69896543 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2047-Oct-13 13:40 < 00:01 Jupiter 1.52632933924222 1.52632887840916 1.52632980007589 1.64550955151217 1.26404903567093 2468997.069571875 0.810521509490035 114.870497405961 58.6389586425291 -44.3062691370054 2573713.5808816 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2057-Jul-21 17:38 00:01 Jupiter 1.6303154341138 1.63031463688867 1.6303162313381 1.63916115507773 1.28365063175963 2472566.234837048 1.08017994997343 102.551018757167 57.5329546861124 40.4355279936469 1582490.68618815 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2108-Apr-27 00:16 00:02 Jupiter 1.94126903528175 1.94126757095454 1.94127049960836 2.94623110502762 2.79421356942403 2491107.511101501 2.02435360956392 54.9848852239557 40.8212045151354 31.5279112835543 1152276.08952268 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2118-Feb-10 04:19 00:02 Jupiter 1.39760140780122 1.39760097321443 1.39760184238993 1.26412502462583 0.621211099728096 2494683.680135244 2.30368847050572 1020.34549583319 215.274412926462 -10.5849961631275 1674779.66585816 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2127-Nov-13 12:16 00:03 Jupiter 1.957459099 1.95745728283726 1.95746091516197 2.96992451569853 2.82046468052401 2498247.010776565 2.49996814172787 75.0118053830586 26.104862728954 -40.6845030477563 1126747.83331386 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2178-Aug-19 17:17 00:04 Jupiter 1.60191879804846 1.60191646867213 1.60192112742907 1.81547009173513 1.49613559770289 2516789.220093522 3.93089638176269 238.393396615496 38.8732877654135 -78.6085572975002 2459112.67081071 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09
2188-May-31 23:13 00:04 Jupiter 1.54530065697684 1.54529827386071 1.54530304008059 1.46004334195254 1.01758076615178 2520362.467486347 4.2574653464167 420.916250958875 94.2955725075731 16.0408699097108 749960.710054039 T 38 CATAB v2.0f-lin.ifort 2020-Feb-22 16:09:24 2020-Feb-22 16:09

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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