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22001 (1999 XY41)
Classification: Main-belt Asteroid          SPK-ID: 2022001
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09839836568303385 3.7292e-08  
a 2.955926892438824 1.4667e-08 au
q 2.665068517144315 1.0621e-07 au
i .5522070005173806 3.9272e-06 deg
node 348.6957390998677 0.0003979 deg
peri 311.795924998425 0.00039885 deg
M 154.7914416721375 3.0915e-05 deg
tp 2458402.352046901844
(2018-Oct-10.85204690)
0.00015792 TDB
period 1856.260656347749
5.08
1.3816e-05
3.783e-08
d
yr
n .1939382805797928 1.4435e-09 deg/d
Q 3.246785267733334 1.6111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2128  
   data-arc span      11854 days (32.45 yr)  
   first obs. used      1988-09-06  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:57:20  

Additional Information
 Earth MOID = 1.64753 au 
 Jupiter MOID = 1.93348 au 
 T_jup = 3.260 
[ 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 13.67   n/a E2021B10  
diameter diameter 9.869 km 0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.64 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]
geometric albedo albedo 0.072   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

22001 (1999 XY41)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XY41 = 1988 RG6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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