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215528 (2002 VQ91)
Classification: Mars-crossing Asteroid          SPK-ID: 2215528
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3371765140765419 7.6443e-08  
a 2.460220155018719 3.4328e-08 au
q 1.630691699288658 2.0372e-07 au
i 13.09495361013246 9.8188e-06 deg
node 77.14402021619853 3.0031e-05 deg
peri 267.6030554720948 4.4504e-05 deg
M 237.4859120974006 5.2448e-05 deg
tp 2459480.170395516348
(2021-Sep-22.67039552)
0.00021441 TDB
period 1409.481516306678
3.86
2.95e-05
8.077e-08
d
yr
n .255413069157035 5.3457e-09 deg/d
Q 3.28974861074878 4.5903e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7376 days (20.19 yr)  
   first obs. used      1998-10-29  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:13:06  

Additional Information
 Earth MOID = .687935 au 
 Jupiter MOID = 2.30278 au 
 T_jup = 3.376 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456706.5 (2014-Feb-18.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3359781753428267 7.8314e-08  
q 1.634185043881482 2.0983e-07 au
tp 2456656.558544198783
(2013-Dec-30.05854420)
0.00016293 TDB
node 77.49178442828912 2.9952e-05 deg
peri 266.8061027799289 4.4614e-05 deg
i 13.10274194571471 9.8345e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      7376 days (20.19 yr)  
   first obs. used      1998-10-29  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:13:06  

Additional Information
 Jupiter MOID = 2.30278 au 
 T_jup = 3.376 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.133069099707012E-15 -1.637358923776102E-14 -8.989530319638683E-12 -9.73200477287696E-14 -1.876314256120952E-12 3.074690605227055E-14
q -1.637358923776102E-14 4.402774001407858E-14 2.548611324186646E-11 2.797596312443227E-13 5.285263268130589E-12 -8.193235899170123E-14
tp -8.989530319638683E-12 2.548611324186646E-11 2.654731720015715E-8 2.6490136932556E-10 5.434330464711947E-9 -6.407640934691367E-11
node -9.73200477287696E-14 2.797596312443227E-13 2.6490136932556E-10 8.971105818643799E-10 -8.164603288263188E-10 9.53612502742308E-11
peri -1.876314256120952E-12 5.285263268130589E-12 5.434330464711947E-9 -8.164603288263188E-10 1.990369531605551E-9 -1.067047361306508E-10
i 3.074690605227055E-14 -8.193235899170123E-14 -6.407640934691367E-11 9.53612502742308E-11 -1.067047361306508E-10 9.67183710072726E-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 16.6   n/a MPO470314  

215528 (2002 VQ91)          Discovered 2002-Nov-11 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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