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2312 Duboshin (1976 GU2)
Classification: Outer Main-belt Asteroid          SPK-ID: 2002312
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1576243824087235 3.784e-08  
a 3.961913099838621 3.0396e-08 au
q 3.337418994319527 1.6326e-07 au
i 5.164546316891958 3.8712e-06 deg
node 61.43971752246402 4.7384e-05 deg
peri 342.0785940477764 4.9183e-05 deg
M 350.2592100481521 1.4057e-05 deg
tp 2459078.437688791656
(2020-Aug-16.93768879)
0.00011293 TDB
period 2880.420181904576
7.89
3.3148e-05
9.075e-08
d
yr
n .1249817655985047 1.4383e-09 deg/d
Q 4.586407205357714 3.5188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2451  
   data-arc span      28101 days (76.94 yr)  
   first obs. used      1943-02-26  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:18:14  

Additional Information
 Earth MOID = 2.34705 au 
 Jupiter MOID = .821982 au 
 T_jup = 3.030 
[ 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 10.0   n/a MPO502175 IRAS observations used: 6
diameter diameter 50.122 km 0.504 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 50.78 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:
[Stephens, R.D. (2016) Minor Planet Bull. 43, 336-339.]
geometric albedo albedo 0.060   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
B-V BV 0.739   0.016 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=2.19, mean=2.44, max.=2.64) deg.
U-B UB 0.246   0.069 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=2.19, mean=2.44, max.=2.64) deg.
Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo

2312 Duboshin (1976 GU2)          Discovered 1976-Apr-01 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 GU2 = 1943 DH = 1971 QJ = 1972 TJ7 = 1973 YE2 = 1975 CF = 1976 JN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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