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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 ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07985923897415838 5.5241e-08  
a 3.004004743496073 3.0242e-08 AU
q 2.764107210805715 1.6915e-07 AU
i 11.12921961756584 5.7023e-06 deg
node 140.2582141882166 2.6373e-05 deg
peri 212.7812212105266 4.3582e-05 deg
M 196.8942084535511 3.7863e-05 deg
tp 2457862.120909011718
(2017-Apr-18.62090901)
0.00020747 JED
period 1901.732147603632
5.21
2.8717e-05
7.862e-08
d
yr
n .1893011066009664 2.8586e-09 deg/d
Q 3.243902276186431 3.2657e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      6378 days (17.46 yr)  
   first obs. used      1997-12-27  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5349  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:41:52  

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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