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129608 (1997 YQ8)
Classification: Main-belt Asteroid          SPK-ID: 2129608
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 .1647171765368632 4.3502e-08  
a 2.376900995227264 1.14e-08 au
q 1.985384574385769 1.0513e-07 au
i 3.543372155960478 5.0129e-06 deg
node 56.45894334439691 7.3146e-05 deg
peri 10.33972560205722 7.4845e-05 deg
M 69.17900491121254 1.4864e-05 deg
tp 2458743.290576758233
(2019-Sep-16.79057676)
5.4679e-05 TDB
period 1338.489798832424
3.66
9.6294e-06
2.636e-08
d
yr
n .2689598384044698 1.935e-09 deg/d
Q 2.768417416068758 1.3278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      474  
   data-arc span      8076 days (22.11 yr)  
   first obs. used      1997-12-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55734  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:05:10  

Additional Information
 Earth MOID = .999295 au 
 Jupiter MOID = 2.52486 au 
 T_jup = 3.520 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8   n/a MPO453774  

129608 (1997 YQ8)          Discovered 1997-Dec-24 by Stroncone at Stroncone
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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