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450237 (2002 XY38)
Classification: Aten [NEO]          SPK-ID: 2450237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217282504618565 3.2288e-08  
a .910894476885767 2.3153e-09 au
q .7129730435048099 2.9569e-08 au
i 2.101354762958294 3.0838e-06 deg
node 159.3630452615857 7.2222e-05 deg
peri 119.4872398935085 6.2465e-05 deg
M 187.3676226493293 2.2625e-05 deg
tp 2459152.772080162813
(2020-Oct-30.27208016)
1.9516e-05 TDB
period 317.5415278401687
0.87
1.2107e-06
3.315e-09
d
yr
n 1.133709982592269 4.3224e-09 deg/d
Q 1.108815910266724 2.8183e-09 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      4743 days (12.99 yr)  
   first obs. used      2002-12-07  
   last obs. used      2015-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47551  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:13  

Additional Information
 Earth MOID = .00309062 au 
 Jupiter MOID = 3.97474 au 
 T_jup = 6.529 
[ 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 22.9   n/a MPO171044  
diameter diameter 0.096 km 0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  
geometric albedo albedo 0.134   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2014ApJ...784..110M)  

450237 (2002 XY38)          Discovered 2002-Dec-07 by NEAT at Palomar
Reference: Last Updated: 2015-11-30

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