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1366 Piccolo (1932 WA)
Classification: Main-belt Asteroid          SPK-ID: 2001366
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1396561274532679 3.3471e-08  
a 2.874295047112879 1.0008e-08 au
q 2.472882131674986 9.5781e-08 au
i 9.465744231261997 3.8786e-06 deg
node 24.11438519846334 2.2196e-05 deg
peri 282.6568165884206 2.5911e-05 deg
M 87.41983699153172 1.3736e-05 deg
tp 2458568.281911593367
(2019-Mar-25.78191159)		 6.7491e-05 TDB
period 1779.899359014597
4.87		 9.296e-06
2.545e-08		 d
yr
n .2022586266896047 1.0563e-09 deg/d
Q 3.275707962550772 1.1405e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3343  
   data-arc span      32128 days (87.96 yr)  
   first obs. used      1932-11-29  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41682  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:00:07  

Additional Information
 Earth MOID = 1.4802 au 
 Jupiter MOID = 2.0602 au 
 T_jup = 3.262 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.3   n/a MPO502166 IRAS observations used: 4
diameter diameter 27.55 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
rotation period rot_per 16.57 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:
[Binzel, R.P. (1987) Icarus 72, 135-208.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.1538   0.022 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
B-V BV 0.710   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.77 deg.
U-B UB 0.180   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.77 deg.

1366 Piccolo (1932 WA)          Discovered 1932-Nov-29 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1932 WA = 1930 FA1 = 1931 PC = 1931 RJ1 = 1935 GM = 1935 JM = 1950 KL = 1961 TL1 = 1961 VP = A916 NB 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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