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150127 (1994 SD9)
Classification: Main-belt Asteroid          SPK-ID: 2150127
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1167929358294469 5.1396e-08  
a 2.980647803337059 2.3427e-08 au
q 2.632529195711732 1.4548e-07 au
i 1.300038270324573 4.7248e-06 deg
node 171.2198615720538 0.00022653 deg
peri 146.563257688332 0.00022789 deg
M 74.39112669877457 2.3628e-05 deg
tp 2458812.096570435032
(2019-Nov-24.59657043)
0.00012283 TDB
period 1879.595602975209
5.15
2.2159e-05
6.067e-08
d
yr
n .1915305608451928 2.258e-09 deg/d
Q 3.328766410962386 2.6163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      9577 days (26.22 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55914  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 10:38:24  

Additional Information
 Earth MOID = 1.61735 au 
 Jupiter MOID = 1.94282 au 
 T_jup = 3.249 
[ 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 16.20   n/a E2021B55  

150127 (1994 SD9)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07

[ show close-approach data ]
Alternate Designations
 1994 SD9 = 2004 RN256 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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