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1280 Baillauda (1933 QB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001280
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 64 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04803197708188775 3.1939e-08  
a 3.423450116087885 1.4441e-08 au
q 3.259015038570966 1.1332e-07 au
i 6.453370483312011 3.6779e-06 deg
node 293.0579203247636 3.0488e-05 deg
peri 94.85709508656012 5.0166e-05 deg
M 283.9715744388967 4.063e-05 deg
tp 2459885.116275700248
(2022-Nov-01.61627570)
0.00026216 TDB
period 2313.632801861965
6.33
1.4639e-05
4.008e-08
d
yr
n .1555994536861161 9.845e-10 deg/d
Q 3.587885193604804 1.5134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3096  
   data-arc span      32087 days (87.85 yr)  
   first obs. used      1933-08-18  
   last obs. used      2021-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:11:41  

Additional Information
 Earth MOID = 2.27159 au 
 Jupiter MOID = 1.7093 au 
 T_jup = 3.130 
[ 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 10.19   n/a E2021B10 IRAS observations used: 18
diameter diameter 50.83 km 2.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
rotation period rot_per 12.6 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:
[Lagerkvist, C.-I.; Erikson, A.; Debehogne, H.; Festin, L.; et al. (1995) Astron. Astrophys. Suppl. Ser. 113, 115-129.]
geometric albedo albedo 0.0505   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
B-V BV 0.671   0.032 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.73 deg.
U-B UB 0.360   0.055 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=10.73 deg.
Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1280 Baillauda (1933 QB)          Discovered 1933-Aug-18 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 QB = 1931 HE = 1946 SF = 1959 UK = 1961 AN = A912 GB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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