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57140 Gaddi (2001 PG29)
Classification: Main-belt Asteroid          SPK-ID: 2057140
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1832770595012773 3.9617e-08  
a 2.430579073665551 7.3996e-09 au
q 1.98510968815879 9.849e-08 au
i 2.982990098035518 4.4365e-06 deg
node 188.2072687715753 6.9804e-05 deg
peri 200.6511693983537 7.0638e-05 deg
M 303.8316183010637 1.1635e-05 deg
tp 2459216.449632424394
(2021-Jan-01.94963242)
4.5148e-05 TDB
period 1384.085945176058
3.79
6.3205e-06
1.73e-08
d
yr
n .2600994549902805 1.1878e-09 deg/d
Q 2.876048459172312 8.7558e-09 au
  Orbit Determination Parameters
   # obs. used (total)      805  
   data-arc span      10901 days (29.85 yr)  
   first obs. used      1990-11-17  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52402  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 18:18:18  

Additional Information
 Earth MOID = .990324 au 
 Jupiter MOID = 2.56716 au 
 T_jup = 3.483 
[ 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 15.8   n/a MPO436183  
diameter diameter 1.656 km 0.422 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.338   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

57140 Gaddi           Discovered 2001 Aug. 15 by L. Tesi and A. Boattini at San Marcello Pistoiese.
Riccardo Gaddi (b. 1966) is a very active amateur astronomer and popular expositor. Since 1995 he has collaborated with the San Marcello Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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