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(2018 AQ2)
Classification: Apollo [NEO]          SPK-ID: 3797459
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6629741904133127 0.00030689  
a 2.220592050837339 0.0018255 au
q .7483968336952163 6.6253e-05 au
i 1.8245545973279 0.00078576 deg
node 47.52129823297604 0.013626 deg
peri 153.5316138227118 0.012862 deg
M 300.1065118041357 0.36792 deg
tp 2459401.584550404713
(2021-Jul-06.08455040)
1.4832 TDB
period 1208.652899109247
3.31
1.4904
0.00408
d
yr
n .2978522620227137 0.00036728 deg/d
Q 3.692787267979461 0.0030357 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      22 days  
   first obs. used      2018-01-11  
   last obs. used      2018-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .38968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:17:39  

Additional Information
 Earth MOID = .0224905 au 
 Jupiter MOID = 1.26357 au 
 T_jup = 3.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458137.5 (2018-Jan-19.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .663722164755539 0.00030733  
q .7470556515704715 6.8641e-05 au
tp 2458193.379330448346
(2018-Mar-15.87933045)
0.0065051 TDB
node 47.93455297240414 0.012997 deg
peri 153.1075155454877 0.012251 deg
i 1.826454614405521 0.00078937 deg
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      22 days  
   first obs. used      2018-01-11  
   last obs. used      2018-02-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .38968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:17:39  

Additional Information
 Jupiter MOID = 1.26357 au 
 T_jup = 3.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.445115299946187E-8 -2.109518515650194E-8 -1.999188730851382E-6 3.990874884967496E-6 -3.761106366760198E-6 2.425916127987966E-7
q -2.109518515650194E-8 4.711604545901269E-9 4.465040823252698E-7 -8.912675048878005E-7 8.399357099515865E-7 -5.418091077409233E-8
tp -1.999188730851382E-6 4.465040823252698E-7 4.23158172747624E-5 -8.447475142571776E-5 7.961205061638342E-5 -5.134802585429017E-6
node 3.990874884967496E-6 -8.912675048878005E-7 -8.447475142571776E-5 .0001689340312276653 -.0001592345924737512 1.025301729268768E-5
peri -3.761106366760198E-6 8.399357099515865E-7 7.961205061638342E-5 -.0001592345924737512 .0001500961075136502 -9.66295064543637E-6
i 2.425916127987966E-7 -5.418091077409233E-8 -5.134802585429017E-6 1.025301729268768E-5 -9.66295064543637E-6 6.231085153959041E-7

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.1   n/a MPO438048  
rotation period rot_per 7.82 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Warner, B.D. (2018) Minor Planet Bull. 45, 248-256.]

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