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28018 (1998 AG)
Classification: Main-belt Asteroid          SPK-ID: 2028018
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07985921850636073 5.8106e-08  
a 3.004004732326427 3.1784e-08 AU
q 2.764107262013429 1.7507e-07 AU
i 11.1292209736211 6.3928e-06 deg
node 140.258213286833 2.6476e-05 deg
peri 212.7812303286539 4.4266e-05 deg
M 196.894203551156 3.8132e-05 deg
tp 2457862.120930103472
(2017-Apr-18.62093010)
0.00020841 JED
period 1901.732136996953
5.21
3.0182e-05
8.263e-08
d
yr
n .1893011076567702 3.0044e-09 deg/d
Q 3.243902202639424 3.4323e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      6300 days (17.25 yr)  
   first obs. used      1997-12-27  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53909  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:26:53  

Additional Information
 Earth MOID = 1.76435 AU 
 T_jup = 3.218 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO299158  

28018 (1998 AG)          Discovered 1998-Jan-04 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 AG = 1970 UC = 1999 GO38 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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