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39864 Poggiali (1998 DH20)
Classification: Main-belt Asteroid          SPK-ID: 2039864
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09335656493055229 4.9534e-08  
a 2.980862093918547 2.213e-08 au
q 2.702579048298618 1.5786e-07 au
i 11.23384234272977 4.3805e-06 deg
node 110.744463184354 2.4239e-05 deg
peri 283.9256764240298 3.7258e-05 deg
M 222.5090609743093 3.2609e-05 deg
tp 2459718.431205537230
(2022-May-18.93120554)
0.00017561 TDB
period 1879.798303982122
5.15
2.0933e-05
5.731e-08
d
yr
n .1915099078647876 2.1326e-09 deg/d
Q 3.259145139538477 2.4196e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1216  
   data-arc span      8185 days (22.41 yr)  
   first obs. used      1998-02-24  
   last obs. used      2020-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51818  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 00:19:21  

Additional Information
 Earth MOID = 1.73767 au 
 Jupiter MOID = 2.13305 au 
 T_jup = 3.224 
[ 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 14.0   n/a MPO439363  
rotation period rot_per 8.36 h n/a LCDB (Rev. 2019-August); 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:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]

39864 Poggiali           Discovered 1998 Feb. 26 by F. Mallia and M. Di Sora at the Campo Catino Astronomical Observatory.
A member of the NATO Advisory Group for Aerospace Research and Development, Maurizio Poggiali (1965-1997) was a poet, aircraft navigator and aerospace engineer whose experiences are described in Top-Gun--Con valore verso le stelle (2000). His poems were collected in Lune d´inverno ("Winter Moons", 1998).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

Alternate Designations
 1998 DH20 = 1999 JD138 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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