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243585 (1997 WY28)
Classification: Main-belt Asteroid          SPK-ID: 2243585
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08066212210160076 4.3423e-08  
a 2.432871882786839 1.5294e-08 au
q 2.236631273919936 1.0949e-07 au
i 3.92679178662321 4.8911e-06 deg
node 83.55659481385661 7.342e-05 deg
peri 4.713277790247001 8.08e-05 deg
M 307.8678670317127 3.5332e-05 deg
tp 2459201.215207715317
(2020-Dec-17.71520772)
0.00013686 TDB
period 1386.044856853822
3.79
1.307e-05
3.578e-08
d
yr
n .2597318537129906 2.4492e-09 deg/d
Q 2.629112491653743 1.6528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      9436 days (25.83 yr)  
   first obs. used      1993-10-21  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63077  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:15:52  

Additional Information
 Earth MOID = 1.25306 au 
 Jupiter MOID = 2.50443 au 
 T_jup = 3.499 
[ 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 17.0   n/a MPO440239  

243585 (1997 WY28)          Discovered 1997-Nov-29 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1954-Oct-08 14:01 00:01 Eunom 0.0492562753099048 0.0492507924734904 0.0492617623644634 5.44001723736404 5.44001718497601 2435024.084018370 1.14950984469786 783.522256526729 56.6312871058833 -69.9904400423215 122233.757969382 T 11 CATAB v2.0f-lin.ifort 2019-Sep-24 04:15:54 2019-Sep-24 04:15

Alternate Designations
 1997 WY28 = 2001 YY15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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