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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395851882064965 2.0607e-08  
a 2.874997017090192 9.6033e-09 au
q 2.473690017366541 5.7211e-08 au
i 9.464680082890839 4.3113e-07 deg
node 24.108262100455 1.3096e-06 deg
peri 282.76125256 4.0332e-06 deg
M 127.7606128991538 4.7664e-06 deg
tp 2458568.599047063608
(2019-Mar-26.09904706)
2.147e-05 TDB
period 1780.55143831114
4.87
8.9213e-06
2.443e-08
d
yr
n .202184554882313 1.013e-09 deg/d
Q 3.276304016813842 1.0944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3604  
   data-arc span      32257 days (88.31 yr)  
   first obs. used      1932-11-29  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40869  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:25:35  

Additional Information
 Earth MOID = 1.47906 au 
 Jupiter MOID = 2.05937 au 
 T_jup = 3.262 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456488.5 (2013-Jul-15.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1420296361612951 2.0446e-08  
q 2.465531909251512 5.6858e-08 au
tp 2456791.388766626179
(2014-May-13.88876663)
1.7183e-05 TDB
node 24.16027716870775 1.307e-06 deg
peri 283.17854446948 3.9916e-06 deg
i 9.475266589013847 4.3137e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3604  
   data-arc span      32257 days (88.31 yr)  
   first obs. used      1932-11-29  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40869  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:25:35  

Additional Information
 Jupiter MOID = 2.05937 au 
 T_jup = 3.262 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.180556471659474E-16 -1.151459596805132E-15 8.385937576500334E-14 8.500876052555065E-15 -2.516964991444816E-14 9.317950222421257E-16
q -1.151459596805132E-15 3.232813937979128E-15 -2.051839749293277E-13 -2.390376786711635E-14 7.752497194997224E-14 -2.526227076560555E-15
tp 8.385937576500334E-14 -2.051839749293277E-13 2.952522711921755E-10 -1.434721465514142E-12 5.532348405429555E-11 -1.038259882555529E-12
node 8.500876052555065E-15 -2.390376786711635E-14 -1.434721465514142E-12 1.708293046320792E-12 -2.367329201410672E-12 2.745957981567836E-14
peri -2.516964991444816E-14 7.752497194997224E-14 5.532348405429555E-11 -2.367329201410672E-12 1.593270332401004E-11 -3.4310233359273E-13
i 9.317950222421257E-16 -2.526227076560555E-15 -1.038259882555529E-12 2.745957981567836E-14 -3.4310233359273E-13 1.860795353414226E-13

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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