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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1394841687953193 2.0595e-08  
a 2.875443660602853 9.6183e-09 au
q 2.474364791685893 5.7184e-08 au
i 9.464357081870126 4.3106e-07 deg
node 24.09947567367498 1.3095e-06 deg
peri 282.8359781782621 4.0376e-06 deg
M 167.3059779279174 4.9066e-06 deg
tp 2458568.815772953698
(2019-Mar-26.31577295)		 2.1468e-05 TDB
period 1780.966379247044
4.88		 8.936e-06
2.447e-08		 d
yr
n .2021374486317932 1.0142e-09 deg/d
Q 3.276522529519811 1.096e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3678  
   data-arc span      32316 days (88.48 yr)  
   first obs. used      1932-11-29  
   last obs. used      2021-05-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40483  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:17:34  

Additional Information
 Earth MOID = 1.4811 au 
 Jupiter MOID = 2.05839 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 10.37   n/a MPCxxxxx 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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