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JPL Small-Body Database Browser
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(2018 RQ2)
Classification: Apollo [NEO]          SPK-ID: 3827336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4075767340326352 8.3974e-07  
a 1.524789228094469 1.859e-06 au
q .9033206144195823 1.8156e-07 au
i 20.13760910526691 3.9335e-05 deg
node 172.7738041419274 4.385e-06 deg
peri 232.463750352333 8.6645e-06 deg
M 95.53769264068276 0.00016468 deg
tp 2458417.990532812294
(2018-Oct-26.49053281)
1.9719e-05 TDB
period 687.722367701349
1.88
0.0012577
3.443e-06
d
yr
n .523467051396435 9.5731e-07 deg/d
Q 2.146257841769356 2.6167e-06 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      152 days  
   first obs. used      2018-09-07  
   last obs. used      2019-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-19 06:42:49  

Additional Information
 Earth MOID = .0104556 au 
 Jupiter MOID = 3.38673 au 
 T_jup = 4.341 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458461.5 (2018-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4076309811221944 8.3967e-07  
q .903330739088151 1.8148e-07 au
tp 2458418.001014292977
(2018-Oct-26.50101429)
1.9744e-05 TDB
node 172.7753181437649 4.3895e-06 deg
peri 232.4702901372221 8.6591e-06 deg
i 20.13691704982575 3.9335e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      140  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      152 days  
   first obs. used      2018-09-07  
   last obs. used      2019-02-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .33073  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Feb-19 06:42:49  

Additional Information
 Jupiter MOID = 3.38673 au 
 T_jup = 4.341 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.050502462557804E-13 -1.506019379233221E-13 -1.607370011064137E-11 -2.390159319409886E-12 3.200550604987818E-12 3.019939320458023E-11
q -1.506019379233221E-13 3.293376732365535E-14 3.331647022203545E-12 5.011037070601708E-13 -8.423910063428001E-13 -6.447017958768152E-12
tp -1.607370011064137E-11 3.331647022203545E-12 3.898384360414614E-10 5.218130389216052E-11 -3.928152709193255E-11 -6.76868820271988E-10
node -2.390159319409886E-12 5.011037070601708E-13 5.218130389216052E-11 1.926793587633272E-11 -2.398315977365895E-11 -1.34082057508843E-10
peri 3.200550604987818E-12 -8.423910063428001E-13 -3.928152709193255E-11 -2.398315977365895E-11 7.498084551052627E-11 1.809935018539941E-10
i 3.019939320458023E-11 -6.447017958768152E-12 -6.76868820271988E-10 -1.34082057508843E-10 1.809935018539941E-10 1.547212348340596E-9

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 23.0   .23935 MPO452098 autocmod 2.6n
rotation period rot_per 8.58 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D.; Stephens, R.D. (2019) Minor Planet Bull. 46, 27-40.]

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