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1772 Gagarin (1968 CB)
Classification: Main-belt Asteroid          SPK-ID: 2001772
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044805850222101 7.7659e-08  
a 2.527370709985636 7.9511e-09 au
q 2.263309539638338 1.9698e-07 au
i 5.742076288445067 3.9347e-06 deg
node 88.17478029776782 3.8753e-05 deg
peri 93.47956308394126 4.6671e-05 deg
M 335.6090720887504 2.9243e-05 deg
tp 2459099.932342476257
(2020-Sep-07.43234248)
0.00011926 TDB
period 1467.580217599785
4.02
6.9255e-06
1.896e-08
d
yr
n .2453017529690997 1.1576e-09 deg/d
Q 2.791431880332934 8.7818e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3343  
   data-arc span      29294 days (80.20 yr)  
   first obs. used      1940-04-01  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:36:25  

Additional Information
 Earth MOID = 1.27464 au 
 Jupiter MOID = 2.18432 au 
 T_jup = 3.438 
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Orbital Elements at Epoch 2456555.5 (2013-Sep-20.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046299166842761 7.7535e-08  
q 2.263254850550316 1.9662e-07 au
tp 2456166.527237474593
(2012-Aug-27.02723747)
0.00012001 TDB
node 88.22567725228532 3.8754e-05 deg
peri 93.87811645061572 4.6837e-05 deg
i 5.742105162407944 3.9349e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3343  
   data-arc span      29294 days (80.20 yr)  
   first obs. used      1940-04-01  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40742  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:36:25  

Additional Information
 Jupiter MOID = 2.18432 au 
 T_jup = 3.438 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.011730737116749E-15 -1.523512363299328E-14 -6.893863744829964E-12 7.805050158012391E-14 -1.361552205476619E-12 3.356246403309717E-15
q -1.523512363299328E-14 3.865944541904611E-14 1.74034538406182E-11 -1.970341681294594E-13 3.435031040411627E-12 -8.301372508772666E-15
tp -6.893863744829964E-12 1.74034538406182E-11 1.440212073996726E-8 -1.116541789495984E-10 3.160114394189641E-9 -1.24376323875365E-12
node 7.805050158012391E-14 -1.970341681294594E-13 -1.116541789495984E-10 1.501852167967618E-9 -1.515600084131022E-9 3.580848646169826E-11
peri -1.361552205476619E-12 3.435031040411627E-12 3.160114394189641E-9 -1.515600084131022E-9 2.193712115386412E-9 -3.569383834873362E-11
i 3.356246403309717E-15 -8.301372508772666E-15 -1.24376323875365E-12 3.580848646169826E-11 -3.569383834873362E-11 1.548341359637104E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO416725  
diameter diameter 9.634 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.96 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:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.138   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
B-V BV 0.920   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.90 deg.

1772 Gagarin (1968 CB)          Discovered 1968-Feb-06 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1968 CB = 1940 GA = 1942 VZ = 1948 ET = 1960 FH = 1969 OO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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