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227022 (2004 XG177)
Classification: Main-belt Asteroid          SPK-ID: 2227022
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0110397424924031 4.8028e-08  
a 3.178512551843633 3.2868e-08 au
q 3.143422591762408 1.4336e-07 au
i 2.538832478882571 5.1708e-06 deg
node 47.39378219581096 0.00010722 deg
peri 188.9795542655223 0.00025235 deg
M 165.9692720494024 0.00022925 deg
tp 2458246.255838459839
(2018-May-07.75583846)
0.0013176 TDB
period 2069.828311666051
5.67
3.2105e-05
8.79e-08
d
yr
n .173927469235469 2.6978e-09 deg/d
Q 3.213602511924858 3.3231e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      10249 days (28.06 yr)  
   first obs. used      1992-11-25  
   last obs. used      2020-12-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:08  

Additional Information
 Earth MOID = 2.12909 au 
 Jupiter MOID = 1.74867 au 
 T_jup = 3.199 
[ 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 15.7   n/a MPO450052  
diameter diameter 3.987 km 1.295 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227022 (2004 XG177)          Discovered 2004-Dec-11 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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