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3759 Piironen (1984 AP)
Classification: Main-belt Asteroid          SPK-ID: 2003759
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1181697944447085 3.3956e-08  
a 2.719266627635594 1.2098e-08 au
q 2.39793144920754 9.2923e-08 au
i 13.05229839152956 4.1642e-06 deg
node 292.8730004624737 2.1193e-05 deg
peri 166.1104819361497 3.2632e-05 deg
M 317.8034489595233 2.4491e-05 deg
tp 2458792.477605467432
(2019-Nov-04.97760547)		 0.0001119 TDB
period 1637.857508827686
4.48		 1.093e-05
2.992e-08		 d
yr
n .2197993403331367 1.4669e-09 deg/d
Q 3.040601806063648 1.3528e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1948  
   data-arc span      13083 days (35.82 yr)  
   first obs. used      1984-01-05  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45667  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:29:06  

Additional Information
 Earth MOID = 1.41683 au 
 Jupiter MOID = 2.11147 au 
 T_jup = 3.312 
[ 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 11.9   n/a MPO458867  
diameter diameter 32.15 km 1.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 409.848 h n/a LCDB (Rev. 2019-January); 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.]
geometric albedo albedo 0.0297   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
SMASSII spectral type spec_B X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3759 Piironen (1984 AP)          Discovered 1984-Jan-08 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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