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22401 Egisto (1995 DP3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2022401
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147693043692329 3.8398e-08  
a 3.21766493048624 1.8814e-08 au
q 2.848375764721058 1.2158e-07 au
i 15.74093682366393 4.0257e-06 deg
node 157.5239770174224 1.3606e-05 deg
peri 31.9974615440339 2.2158e-05 deg
M 131.748974310299 1.7224e-05 deg
tp 2458428.967198603352
(2018-Nov-06.46719860)
9.9269e-05 TDB
period 2108.189532076537
5.77
1.849e-05
5.062e-08
d
yr
n .1707626352007378 1.4977e-09 deg/d
Q 3.586954096251422 2.0973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1730  
   data-arc span      12004 days (32.87 yr)  
   first obs. used      1988-02-10  
   last obs. used      2020-12-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:05:30  

Additional Information
 Earth MOID = 1.86329 au 
 Jupiter MOID = 1.4157 au 
 T_jup = 3.121 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.29   n/a E2021B10  
diameter diameter 15.491 km 3.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.051   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22401 Egisto           Discovered 1995 Feb. 24 by M. Tombelli at Asiago Observatory.
Egisto Masotti (b. 1944), amateur astronomer in the Montelupo group of amateur astronomers, is very active in the populatization of astromomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1995 DP3 = 1989 CE3 = 2000 YY34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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