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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180754479300637 3.3556e-08  
a 2.718516596933153 1.0133e-08 au
q 2.397526532044958 9.1053e-08 au
i 13.05312254171043 4.0827e-06 deg
node 292.8703683796201 1.7288e-05 deg
peri 165.8947597233249 2.7873e-05 deg
M 89.88982854939479 2.018e-05 deg
tp 2458791.706048521183
(2019-Nov-04.20604852)
9.1539e-05 TDB
period 1637.179922437007
4.48
9.1539e-06
2.506e-08
d
yr
n .2198903095904853 1.2295e-09 deg/d
Q 3.039506661821347 1.133e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2435  
   data-arc span      13527 days (37.03 yr)  
   first obs. used      1984-01-05  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41681  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:12:57  

Additional Information
 Earth MOID = 1.41615 au 
 Jupiter MOID = 2.1119 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 11.96   n/a E2021B10  
diameter diameter 32.15 km 1.0 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 8.213 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:
[Klinglesmith, D.A. III; DeHart, A.; Hanowell, J.; Hendrickx, S. (2015) Minor Planet Bull. 42, 158-159.]
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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