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103231 (1999 YM15)
Classification: Main-belt Asteroid          SPK-ID: 2103231
[ 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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06511582315581724 4.7136e-08  
a 2.169937173325925 1.0502e-08 au
q 2.0286399280884 1.0752e-07 au
i 4.386650851073798 5.3093e-06 deg
node 226.1273565175688 4.3773e-05 deg
peri 49.57622680528439 5.8884e-05 deg
M 357.0518165568851 4.1075e-05 deg
tp 2459210.061392987125
(2020-Dec-26.56139299)		 0.00013324 TDB
period 1167.533005248903
3.20		 8.4759e-06
2.321e-08		 d
yr
n .3083424608825106 2.2385e-09 deg/d
Q 2.31123441856345 1.1186e-08 au
   Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      1999-11-12  
   last obs. used      2020-05-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58971  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:00  

Additional Information
 Earth MOID = 1.01382 au 
 Jupiter MOID = 2.73461 au 
 T_jup = 3.683 
[ 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 17.27   n/a E2021B55  

103231 (1999 YM15)          Discovered 1999-Dec-31 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1999 YM15 = 2001 HT59 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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