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99534 (2002 EK91)
Classification: Main-belt Asteroid          SPK-ID: 2099534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763160498761444 3.9769e-08  
a 2.390308328310671 1.0529e-08 au
q 1.968858605876884 9.5112e-08 au
i 2.467355823728475 4.6487e-06 deg
node 44.70084760959159 0.0001081 deg
peri 86.20517668818832 0.00010899 deg
M 61.62830059299792 1.5203e-05 deg
tp 2458969.422848540159
(2020-Apr-29.92284854)
5.6319e-05 TDB
period 1349.830738882884
3.70
8.9184e-06
2.442e-08
d
yr
n .2667001051538765 1.7621e-09 deg/d
Q 2.811758050744459 1.2385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      8210 days (22.48 yr)  
   first obs. used      1997-11-24  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:27:49  

Additional Information
 Earth MOID = .985266 au 
 Jupiter MOID = 2.23622 au 
 T_jup = 3.510 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456712.5 (2014-Feb-24.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1759878052806767 3.9861e-08  
q 1.970231953767356 9.5335e-08 au
tp 2456269.544189285535
(2012-Dec-08.04418929)
5.1274e-05 TDB
node 44.72490927789901 0.00010809 deg
peri 86.37636194487966 0.00010897 deg
i 2.467890274231802 4.6475e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      486  
   data-arc span      8210 days (22.48 yr)  
   first obs. used      1997-11-24  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58219  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:27:49  

Additional Information
 Jupiter MOID = 2.23622 au 
 T_jup = 3.510 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.588892533422259E-15 -3.784498387627023E-15 2.464687950135477E-13 -1.273346400161361E-14 5.619296522231193E-14 -9.017425219745691E-17
q -3.784498387627023E-15 9.0887320663532E-15 -5.333643879363099E-13 2.870456886787055E-14 -1.140859994603101E-13 2.896355772787484E-16
tp 2.464687950135477E-13 -5.333643879363099E-13 2.629014425069751E-9 -2.327790841833311E-11 7.322963182530309E-10 -1.02982696619477E-12
node -1.273346400161361E-14 2.870456886787055E-14 -2.327790841833311E-11 1.168275515967916E-8 -1.167741486694572E-8 -3.702544424810189E-11
peri 5.619296522231193E-14 -1.140859994603101E-13 7.322963182530309E-10 -1.167741486694572E-8 1.187508848367789E-8 3.674620870364526E-11
i -9.017425219745691E-17 2.896355772787484E-16 -1.02982696619477E-12 -3.702544424810189E-11 3.674620870364526E-11 2.159902043015289E-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 16.44   n/a E2021B10  

99534 (2002 EK91)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 2002 EK91 = 1997 WC7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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