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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08082904870263578 4.3178e-08  
a 2.433384547377724 1.4409e-08 au
q 2.236696389285489 1.0835e-07 au
i 3.926610647319882 4.8832e-06 deg
node 83.55767053174685 7.1536e-05 deg
peri 4.643389492640169 7.8483e-05 deg
M 359.8746339687849 3.341e-05 deg
tp 2459200.982827415908
(2020-Dec-17.48282742)
0.00012867 TDB
period 1386.482989389942
3.80
1.2315e-05
3.372e-08
d
yr
n .2596497777144756 2.3062e-09 deg/d
Q 2.630072705469959 1.5573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1993-10-21  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 01:44:12  

Additional Information
 Earth MOID = 1.2528 au 
 Jupiter MOID = 2.50339 au 
 T_jup = 3.498 
[ 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 17.10   n/a MPCxxxxx  

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 13 CATAB v2.0f-lin.ifort 2021-Apr-14 01:44:13 2021-Apr-14 01:44

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