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277297 (2005 SY128)
Classification: Main-belt Asteroid          SPK-ID: 2277297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2350249585679431 1.324e-07  
a 2.332974042823614 1.6105e-08 au
q 1.784666915068907 3.1988e-07 au
i .9555224389658109 5.0855e-06 deg
node 36.46332792872025 0.00036229 deg
peri 316.60987439553 0.00036279 deg
M 56.47480889441572 1.2665e-05 deg
tp 2458796.318891988373
(2019-Nov-08.81889199)
4.5015e-05 TDB
period 1301.557284091208
3.56
1.3478e-05
3.69e-08
d
yr
n .2765917446740459 2.8641e-09 deg/d
Q 2.88128117057832 1.9891e-08 au
  Orbit Determination Parameters
   # obs. used (total)      234  
   data-arc span      7646 days (20.93 yr)  
   first obs. used      1998-11-25  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:22:55  

Additional Information
 Earth MOID = .779612 au 
 Jupiter MOID = 2.557 au 
 T_jup = 3.532 
[ 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 17.6   n/a MPO494502  

277297 (2005 SY128)          Discovered 2005-Sep-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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