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100329 (1995 QW8)
Classification: Main-belt Asteroid          SPK-ID: 2100329
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06538753147121941 4.468e-08  
a 3.180079430117789 3.0147e-08 au
q 2.972141886299984 1.4089e-07 au
i 15.1634414828462 6.7376e-06 deg
node 306.8315567066295 2.0227e-05 deg
peri 325.0271890542683 6.092e-05 deg
M 181.6894661075839 6.0166e-05 deg
tp 2460026.458698523275
(2023-Mar-22.95869852)
0.00035059 TDB
period 2071.359012873709
5.67
2.9454e-05
8.064e-08
d
yr
n .1737989396152782 2.4714e-09 deg/d
Q 3.388016973935593 3.2118e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1995-08-28  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:55:54  

Additional Information
 Earth MOID = 1.96774 au 
 Jupiter MOID = 1.8661 au 
 T_jup = 3.142 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456841.5 (2014-Jul-03.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06937627951153505 4.471e-08  
q 2.955721378232962 1.4161e-07 au
tp 2455875.678524289262
(2011-Nov-10.17852429)
0.00031642 TDB
node 306.9693519496967 2.0155e-05 deg
peri 323.2258637672256 5.7873e-05 deg
i 15.20092305660017 6.7446e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      8894 days (24.35 yr)  
   first obs. used      1995-08-28  
   last obs. used      2020-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 14:55:54  

Additional Information
 Jupiter MOID = 1.8661 au 
 T_jup = 3.142 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.998993318409187E-15 -6.209949782787796E-15 4.40953061413682E-12 8.044406652969896E-15 7.816620292391973E-13 3.53054381914108E-15
q -6.209949782787796E-15 2.005265768169891E-14 -1.257779609233745E-11 -2.585535670710307E-14 -2.176071745230445E-12 -9.081447756784536E-15
tp 4.40953061413682E-12 -1.257779609233745E-11 1.001242444277148E-7 2.972071002920204E-12 1.71896121537064E-8 1.775192859543441E-11
node 8.044406652969896E-15 -2.585535670710307E-14 2.972071002920204E-12 4.062259218043844E-10 -3.911580163813344E-10 5.322467643322035E-11
peri 7.816620292391973E-13 -2.176071745230445E-12 1.71896121537064E-8 -3.911580163813344E-10 3.349268432688591E-9 -4.821786470082302E-11
i 3.53054381914108E-15 -9.081447756784536E-15 1.775192859543441E-11 5.322467643322035E-11 -4.821786470082302E-11 4.548925891674988E-11

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 14.5   n/a MPO381885  

100329 (1995 QW8)          Discovered 1995-Aug-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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