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JPL Small-Body Database Browser
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444004 (2004 AS1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2444004
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744070698465174 7.625e-08  
a 1.070535717342916 2.8117e-09 au
q .8838267197150985 7.9613e-08 au
i 17.21486496957104 1.9304e-05 deg
node 322.5488783036984 9.3017e-06 deg
peri 262.0848392682369 2.1455e-05 deg
M 195.2083167526567 2.2388e-05 deg
tp 2458785.696578320746
(2019-Oct-29.19657832)
2.5548e-05 TDB
period 404.5760494805998
1.11
1.5939e-06
4.364e-09
d
yr
n .8898203451790407 3.5056e-09 deg/d
Q 1.257244714970734 3.3021e-09 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      4265 days (11.68 yr)  
   first obs. used      2004-01-13  
   last obs. used      2015-09-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46289  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:20:24  

Additional Information
 Earth MOID = .0230075 au 
 Jupiter MOID = 3.78435 au 
 T_jup = 5.714 
[ 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 20.5   n/a MPO70365  

444004 (2004 AS1)          Discovered 2004-Jan-13 by LINEAR at Socorro
Reference: Last Updated: 2015-10-05

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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