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268515 (2005 YD178)
Classification: Main-belt Asteroid          SPK-ID: 2268515
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02532787015512308 1.0222e-07  
a 2.815622437908387 3.2887e-08 au
q 2.744308718395192 2.7384e-07 au
i .6595061472137029 1.1846e-05 deg
node 342.7581619967875 0.00061356 deg
peri 153.6731308256618 0.0006454 deg
M 76.76792098590188 0.00020112 deg
tp 2459028.508886132602
(2020-Jun-28.00888613)
0.00096211 TDB
period 1725.679154663993
4.72
3.0234e-05
8.278e-08
d
yr
n .2086135183513273 3.655e-09 deg/d
Q 2.886936157421581 3.372e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      7920 days (21.68 yr)  
   first obs. used      1999-09-06  
   last obs. used      2021-05-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .66166  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 04:48:00  

Additional Information
 Earth MOID = 1.75814 au 
 Jupiter MOID = 2.09431 au 
 T_jup = 3.319 
[ 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 17.1   n/a MPO273626  

268515 (2005 YD178)          Discovered 2005-Dec-22 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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