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216695 (2004 QY4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2216695
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05312132360194541 3.3931e-08  
a 1.930502533062377 6.9874e-09 au
q 1.827951683289195 6.5093e-08 au
i 22.920617062 4.9178e-06 deg
node 165.9565996735671 7.9571e-06 deg
peri 114.1122097022539 5.856e-05 deg
M 81.71878614118927 5.357e-05 deg
tp 2458978.105830706745
(2020-May-08.60583071)
0.00014627 TDB
period 979.724549594328
2.68
5.3192e-06
1.456e-08
d
yr
n .3674502186855114 1.995e-09 deg/d
Q 2.033053382835559 7.3586e-09 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      8274 days (22.65 yr)  
   first obs. used      1998-04-02  
   last obs. used      2020-11-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52518  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:55:55  

Additional Information
 Earth MOID = .861706 au 
 Jupiter MOID = 3.05735 au 
 T_jup = 3.816 
[ 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 17.19   n/a E2021B55  

216695 (2004 QY4)          Discovered 2004-Aug-21 by Tucker, R. A. at Goodricke-Pigott
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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