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JPL Small-Body Database Browser
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212323 (2005 QG157)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212323
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0861190731393482 5.1945e-08  
a 3.501588395591662 4.1385e-08 au
q 3.200034848447811 1.8371e-07 au
i 9.564829942046186 6.5639e-06 deg
node 211.8937512108953 3.216e-05 deg
peri 193.3660852439372 4.894e-05 deg
M 59.0067444494977 3.6659e-05 deg
tp 2458608.220853431504
(2019-May-04.72085343)
0.00024196 TDB
period 2393.294090059917
6.55
4.2429e-05
1.162e-07
d
yr
n .1504202937262036 2.6667e-09 deg/d
Q 3.803141942735513 4.4949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      394  
   data-arc span      7748 days (21.21 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56844  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:04:59  

Additional Information
 Earth MOID = 2.20977 au 
 Jupiter MOID = 1.60817 au 
 T_jup = 3.098 
[ 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 14.7   n/a MPO338561  

212323 (2005 QG157)          Discovered 2005-Aug-30 by NEAT at Palomar
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 QG157 = 1999 XP3 = 2002 GK128 = 2012 TP323 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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