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JPL Small-Body Database Browser
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172903 (2005 GC78)
Classification: Main-belt Asteroid          SPK-ID: 2172903
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1402613152160117 5.4608e-08  
a 2.770793427156059 3.762e-08 au
q 2.38215829687127 1.5981e-07 au
i 14.62858293220837 9.6964e-06 deg
node 61.08703013101101 2.8018e-05 deg
peri 252.8724886072424 5.2886e-05 deg
M 356.7747748623149 5.1244e-05 deg
tp 2459015.592534777977
(2020-Jun-15.09253478)
0.00024001 TDB
period 1684.630463959389
4.61
3.4309e-05
9.393e-08
d
yr
n .2136967172930564 4.3521e-09 deg/d
Q 3.159428557440849 4.2896e-08 au
  Orbit Determination Parameters
   # obs. used (total)      229  
   data-arc span      6059 days (16.59 yr)  
   first obs. used      2002-10-31  
   last obs. used      2019-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:55:53  

Additional Information
 Earth MOID = 1.41586 au 
 Jupiter MOID = 2.16255 au 
 T_jup = 3.276 
[ 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 15.8   n/a MPO294207  

172903 (2005 GC78)          Discovered 2005-Apr-06 by CSS at Catalina
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ 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
1935-Aug-27 22:43 < 00:01 David 0.0438789470105485 0.0438497558789556 0.0439081703798258 5.67141519926184 5.67141513855532 2428042.446795244 0.961768351641195 2377.63121362366 108.793853967419 52.323927078216 47762.4689799578 T 9 CATAB v2.0f-lin.ifort 2020-Feb-24 16:56:08 2020-Feb-24 16:56

Alternate Designations
 2005 GC78 = 2006 QW56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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