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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06862651450647939 1.5524e-08  
a 3.415596598439728 1.4848e-08 au
q 3.181196108928622 5.7158e-08 au
i 5.745421771096197 8.0085e-07 deg
node 223.3806747048418 1.6792e-05 deg
peri 72.61477105762799 2.5955e-05 deg
M 171.0218597729067 1.9619e-05 deg
tp 2458301.163879406666
(2018-Jul-01.66387941)
0.00012384 TDB
period 2305.676034263714
6.31
1.5034e-05
4.116e-08
d
yr
n .1561364192758161 1.0181e-09 deg/d
Q 3.649997087950833 1.5867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3562  
   data-arc span      33074 days (90.55 yr)  
   first obs. used      1930-10-19  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3924  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:02:38  

Additional Information
 Earth MOID = 2.1715 au 
 Jupiter MOID = 1.49146 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 9.80   n/a MPCxxxxx 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 34.818 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Polakis, T. (2020) Minor Planet Bull. 47, 94-101.]
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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