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(2018 QW1)
Classification: Apollo [NEO]          SPK-ID: 3827150
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3254921780876003 0.0001512  
a 1.03368962773068 0.00012659 au
q .6972317393340599 7.0928e-05 au
i 16.76783678149708 0.0081605 deg
node 336.4247335482804 0.00063994 deg
peri 254.8869811837387 0.0092046 deg
M 306.1616648880303 0.13756 deg
tp 2459057.908048668400
(2020-Jul-27.40804867)
0.15722 TDB
period 383.8695508997836
1.05
0.070518
0.0001931
d
yr
n .9378185874763085 0.00017228 deg/d
Q 1.370147516127299 0.0001678 au
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      28 days  
   first obs. used      2018-08-31  
   last obs. used      2018-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .31879  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-28 06:30:03  

Additional Information
 Earth MOID = .000451084 au 
 Jupiter MOID = 3.69022 au 
 T_jup = 5.841 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458368.5 (2018-Sep-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3256327466282769 0.00015109  
q .6970405653984237 7.0548e-05 au
tp 2458290.192199048500
(2018-Jun-20.69219905)
0.016014 TDB
node 336.437064779625 0.00064566 deg
peri 254.8547584778281 0.0092692 deg
i 16.77192846417434 0.0081554 deg
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      28 days  
   first obs. used      2018-08-31  
   last obs. used      2018-09-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .31879  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Sep-28 06:30:03  

Additional Information
 Jupiter MOID = 3.69022 au 
 T_jup = 5.841 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.282716206132101E-8 -1.065696674375427E-8 2.419360031641616E-6 -9.752639798119698E-8 1.399621982453041E-6 1.232148411611718E-6
q -1.065696674375427E-8 4.977060234722785E-9 -1.129308431829151E-6 4.552027778430343E-8 -6.529909730115279E-7 -5.752270656313508E-7
tp 2.419360031641616E-6 -1.129308431829151E-6 .0002564365927534555 -1.033740295720813E-5 .0001483834297160177 .0001305910907681216
node -9.752639798119698E-8 4.552027778430343E-8 -1.033740295720813E-5 4.168780486217126E-7 -5.982237805790573E-6 -5.264080602556594E-6
peri 1.399621982453041E-6 -6.529909730115279E-7 .0001483834297160177 -5.982237805790573E-6 8.591831143873019E-5 7.55491794941295E-5
i 1.232148411611718E-6 -5.752270656313508E-7 .0001305910907681216 -5.264080602556594E-6 7.55491794941295E-5 6.650989989371851E-5

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 22.5   .56214 E2018S67 autocmod 2.6n

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