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JPL Small-Body Database Browser
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469015 (2015 AC228)
Classification: Main-belt Asteroid          SPK-ID: 2469015
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09861797987097155 7.1428e-08  
a 2.752091632615041 4.7789e-08 au
q 2.480685915386742 1.9887e-07 au
i 12.37885871561032 7.0844e-06 deg
node 176.6334560144741 3.6573e-05 deg
peri 223.2771801166886 5.678e-05 deg
M 57.66396305081209 3.8968e-05 deg
tp 2458333.387170592816
(2018-Aug-02.88717059)
0.00018241 TDB
period 1667.603360904138
4.57
4.3436e-05
1.189e-07
d
yr
n .2158786726148212 5.6229e-09 deg/d
Q 3.023497349843341 5.2502e-08 au
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      9397 days (25.73 yr)  
   first obs. used      1993-04-15  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:22:14  

Additional Information
 Earth MOID = 1.50009 au 
 Jupiter MOID = 2.41192 au 
 T_jup = 3.304 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457602.5 (2016-Aug-02.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09830674032265589 7.1369e-08  
q 2.480876542997222 1.9862e-07 au
tp 2458334.681254118485
(2018-Aug-04.18125412)
0.00018298 TDB
node 176.6432371147993 3.6566e-05 deg
peri 223.5738753436969 5.6911e-05 deg
i 12.38045280971225 7.0855e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      115  
   data-arc span      9397 days (25.73 yr)  
   first obs. used      1993-04-15  
   last obs. used      2019-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 16:22:14  

Additional Information
 Jupiter MOID = 2.41192 au 
 T_jup = 3.304 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.093481648405283E-15 -1.383886591338021E-14 5.359745050715747E-13 2.147744444386981E-14 -7.349511353693733E-14 -1.61686369035683E-14
q -1.383886591338021E-14 3.944972100277975E-14 -3.816529966599249E-12 -3.988165444746867E-14 -5.417666073033867E-13 5.198922920716396E-14
tp 5.359745050715747E-13 -3.816529966599249E-12 3.348091849972914E-8 -1.127177513985071E-10 7.997196376571502E-9 -5.189007230803189E-11
node 2.147744444386981E-14 -3.988165444746867E-14 -1.127177513985071E-10 1.337094575525329E-9 -1.333808431989453E-9 2.299796022948794E-11
peri -7.349511353693733E-14 -5.417666073033867E-13 7.997196376571502E-9 -1.333808431989453E-9 3.23888845971302E-9 -3.45007759935323E-11
i -1.61686369035683E-14 5.198922920716396E-14 -5.189007230803189E-11 2.299796022948794E-11 -3.45007759935323E-11 5.020429451408089E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO380610  

469015 (2015 AC228)          Discovered 2011-Mar-28 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-06-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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