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(2018 QR1)
Classification: Apollo [NEO]          SPK-ID: 3827140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458351.5 (2018-Aug-21.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3258320108092725 0.0016073  
a 1.43248959033189 0.0034711 au
q .9657386266506995 3.8204e-05 au
i 31.00468725499622 0.066159 deg
node 148.5080867911046 0.00056306 deg
peri 215.1203960532423 0.082862 deg
M 342.0672133584403 0.11658 deg
tp 2458382.694707628909
(2018-Sep-21.19470763)
0.089425 TDB
period 626.2325521891373
1.71
2.2761
0.006232
d
yr
n .5748663156227486 0.0020894 deg/d
Q 1.899240554013081 0.0046021 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      1 day  
   first obs. used      2018-08-20  
   last obs. used      2018-08-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .43585  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 20:37:47  

Additional Information
 Earth MOID = .000545792 au 
 Jupiter MOID = 3.58594 au 
 T_jup = 4.483 
[ show covariance matrix ]

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 27.232   .00051746 2 autocmod 2.9c

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2018-Aug-21 20:04 00:02 Moon 0.00285582552691849 0.00285452410731857 0.00285713204478594 18.1386855931168 18.1380529061825 2458352.335809907 1.89673516914171 203.227554971797 9.96947928517607 71.564793638516 68456.3602780121 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 20:37:47 2021-Apr-15 20:37
2018-Aug-21 21:10 00:02 Earth 0.000590426087713746 0.000587373173231351 0.000593477843186448 18.0248131623743 17.7726833745185 2458352.382049087 2.33371293977423 146.48135472561 5.95429779319341 -1.50996900130809 397.238079951 T 2 CATAB v2.0g-lin.ifort 2021-Apr-15 20:37:47 2021-Apr-15 20:37
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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