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JPL Small-Body Database Browser
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379237 (2009 SP278)
Classification: Main-belt Asteroid          SPK-ID: 2379237
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1985688871018147 1.6381e-07  
a 2.456076097924823 3.619e-08 au
q 1.968375800522523 3.8203e-07 au
i 2.789852641218948 6.4211e-06 deg
node 132.7791245251479 0.00024841 deg
peri 294.7920780786621 0.00024989 deg
M 137.3602005760678 2.2548e-05 deg
tp 2458064.061955850966
(2017-Nov-06.56195585)
9.1726e-05 TDB
period 1405.921766885503
3.85
3.1074e-05
8.508e-08
d
yr
n .2560597669651971 5.6595e-09 deg/d
Q 2.943776395327123 4.3376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-08-28  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54129  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:45:17  

Additional Information
 Earth MOID = .984081 au 
 Jupiter MOID = 2.36125 au 
 T_jup = 3.464 
[ 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 MPO471888  

379237 (2009 SP278)          Discovered 2009-Sep-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-11-20

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2021-Dec-06 17:59 00:02 Iris 0.0282652344789651 0.0282634209211801 0.028267048480243 3.40181837201998 3.40181831223262 2459555.249028174 1.62426751743418 281.662826367027 67.8023753943564 77.3768815829039 60898.0689541958 T 12 CATAB v2.0e-lin.ifort 2019-May-30 09:45:21 2019-May-30 09:45
2110-May-27 09:29 00:02 Iris 0.0432617064013024 0.0431760745244351 0.0433473907421282 3.66134694958104 3.66134691328757 2491867.895012578 1.85660840043238 4885.33555818168 75.0057324077569 -29.0934199112642 41942.4314456134 T 12 CATAB v2.0e-lin.ifort 2019-May-30 09:45:21 2019-May-30 09:45

Alternate Designations
 2009 SP278 = 2007 EO144 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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