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537829 (2015 XY378)
Classification: Aten [NEO]          SPK-ID: 2537829
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 .489255252489273 3.4847e-07  
a .7101715525709844 2.7359e-08 au
q .3627163903071684 2.459e-07 au
i 13.91255108553653 2.5071e-05 deg
node 1.253813508762962 0.000301 deg
peri 265.6306406333256 0.00027599 deg
M 335.1600627931323 0.00018614 deg
tp 2459215.583124899404
(2021-Jan-01.08312490)
0.00011375 TDB
period 218.5965656259481
0.60
1.2632e-05
3.458e-08
d
yr
n 1.64686942344746 9.5168e-08 deg/d
Q 1.0576267148348 4.0745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      1088 days (2.98 yr)  
   first obs. used      2015-12-12  
   last obs. used      2018-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .43337  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 11:37:03  

Additional Information
 Earth MOID = .196899 au 
 Jupiter MOID = 4.06414 au 
 T_jup = 7.952 
[ 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 19.7   n/a MPO461033  
diameter diameter 0.312 km 0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.214   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

537829 (2015 XY378)          Discovered 2015-Dec-12 by WISE at WISE
Reference: Last Updated: 2019-05-29

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