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1167 Dubiago (1930 PB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001167
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06893290270504371 3.4057e-08  
a 3.413884506002465 1.64e-08 au
q 3.178555537503941 1.1476e-07 au
i 5.74724078776255 3.9745e-06 deg
node 223.3947310029164 3.9135e-05 deg
peri 72.23566656748025 4.9753e-05 deg
M 109.553850981223 3.0501e-05 deg
tp 2458299.372807350616
(2018-Jun-29.87280735)
0.00019524 TDB
period 2303.942646407193
6.31
1.6602e-05
4.545e-08
d
yr
n .1562538896362676 1.126e-09 deg/d
Q 3.64921347450099 1.7531e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3286  
   data-arc span      32885 days (90.03 yr)  
   first obs. used      1930-10-19  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40196  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:21:46  

Additional Information
 Earth MOID = 2.16922 au 
 Jupiter MOID = 1.49362 au 
 T_jup = 3.132 
[ 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 9.7   n/a MPO502164 IRAS observations used: 17
diameter diameter 63.12 km 5.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 14.3 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:
[Dahlgren, M.; Fitzsimmons, A.; Lagerkvist, C.-I.; Williams, I.P. (1991) Mon. Not. Royal Ast. Soc. 250, 115-118.]
geometric albedo albedo 0.0509   0.010 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV 0.743   0.025 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.89, mean=6.68, max.=11.48) deg.
U-B UB 0.196   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=1.89, mean=6.68, max.=11.48) 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

1167 Dubiago (1930 PB)          Discovered 1930-Aug-03 by Skvortsov, E. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1930 PB = 1931 VJ1 = 1938 WW = 1950 QX = A924 RF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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