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97227 (1999 XG54)
Classification: Main-belt Asteroid          SPK-ID: 2097227
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05220490909569021 4.0089e-08  
a 2.978673531216971 1.9492e-08 au
q 2.823172150294051 1.1758e-07 au
i 11.63525668315549 4.5646e-06 deg
node 76.71046805445764 2.0484e-05 deg
peri 106.6914861442586 4.676e-05 deg
M 164.4529614886277 4.3084e-05 deg
tp 2457742.727765742188
(2016-Dec-20.22776574)
0.00022179 TDB
period 1877.728449141771
5.14
1.8431e-05
5.046e-08
d
yr
n .1917210127825142 1.8819e-09 deg/d
Q 3.134174912139892 2.051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1500  
   data-arc span      7316 days (20.03 yr)  
   first obs. used      1999-10-21  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52865  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 11:28:03  

Additional Information
 Earth MOID = 1.84904 au 
 Jupiter MOID = 1.91527 au 
 T_jup = 3.227 
[ 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 13.7   n/a MPO351538  
diameter diameter 5.897 km 0.168 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97227 (1999 XG54)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

[ show close-approach data ]
Alternate Designations
 1999 XG54 = 2000 YJ134 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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