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85530 (1997 WN15)
Classification: Main-belt Asteroid          SPK-ID: 2085530
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2193877274131681 3.9435e-08  
a 2.412677427302302 1.135e-08 au
q 1.883365609545401 9.9006e-08 au
i 3.081265440882942 4.9467e-06 deg
node 89.2038216767809 7.3569e-05 deg
peri 243.6504871045273 7.4959e-05 deg
M 61.74406074401085 1.0743e-05 deg
tp 2458765.731402160620
(2019-Oct-09.23140216)
4.1096e-05 TDB
period 1368.823077130945
3.75
9.6593e-06
2.645e-08
d
yr
n .2629996571613626 1.8559e-09 deg/d
Q 2.941989245059203 1.384e-08 au
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      8030 days (21.98 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58892  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:44  

Additional Information
 Earth MOID = .875464 au 
 Jupiter MOID = 2.43035 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456902.5 (2014-Sep-02.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2202135293848319 3.9382e-08  
q 1.880774865799821 9.8993e-08 au
tp 2457398.040605700959
(2016-Jan-10.54060570)
4.3588e-05 TDB
node 89.21990199976433 7.3626e-05 deg
peri 243.8860017026175 7.5008e-05 deg
i 3.080994128948626 4.945e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      501  
   data-arc span      8030 days (21.98 yr)  
   first obs. used      1997-11-23  
   last obs. used      2019-11-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58892  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:02:44  

Additional Information
 Jupiter MOID = 2.43035 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.550974024003745E-15 -3.885143505779061E-15 -4.959498501078558E-14 2.070542648933302E-14 6.620100278407443E-16 -1.83159508668993E-15
q -3.885143505779061E-15 9.799562427895431E-15 -3.597297131435696E-14 -4.990013042090412E-14 -5.725046931958701E-14 4.852030990311726E-15
tp -4.959498501078558E-14 -3.597297131435696E-14 1.899925963119267E-9 -3.388274703020814E-11 6.362100551524942E-10 6.904046486836389E-14
node 2.070542648933302E-14 -4.990013042090412E-14 -3.388274703020814E-11 5.420794494805683E-9 -5.422393861554188E-9 2.779126671154004E-11
peri 6.620100278407443E-16 -5.725046931958701E-14 6.362100551524942E-10 -5.422393861554188E-9 5.626182262267945E-9 -2.781311148457011E-11
i -1.83159508668993E-15 4.852030990311726E-15 6.904046486836389E-14 2.779126671154004E-11 -2.781311148457011E-11 2.44527619350169E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO436373  

85530 (1997 WN15)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WN15 = 2000 KZ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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