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452231 (2015 SD1)
Classification: Main-belt Asteroid          SPK-ID: 2452231
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1962235836437693 5.2115e-08  
a 2.43798426127473 2.5829e-08 au
q 1.959594252660295 1.2258e-07 au
i 3.614413142650072 9.5133e-06 deg
node 222.4896964173524 8.9554e-05 deg
peri 83.64630752557949 9.3821e-05 deg
M 127.109250285098 3.047e-05 deg
tp 2458509.570160801099
(2019-Jan-26.07016080)
0.00011269 TDB
period 1390.416053239238
3.81
2.2096e-05
6.05e-08
d
yr
n .2589153075162731 4.1146e-09 deg/d
Q 2.916374269889165 3.0898e-08 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      6946 days (19.02 yr)  
   first obs. used      2000-11-01  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61871  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:32:06  

Additional Information
 Earth MOID = .948709 au 
 Jupiter MOID = 2.34146 au 
 T_jup = 3.474 
[ 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 MPO440874  

452231 (2015 SD1)          Discovered 2011-Jun-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-11-30

Alternate Designations
 2015 SD1 = 2011 QH68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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