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(2013 RH74)
Classification: Apollo [NEO, PHA]          SPK-ID: 3648205
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5935918079514229 1.6113e-06  
a 2.285032690043265 1.1192e-05 au
q .9286560043323803 8.7059e-07 au
i 5.475789294205518 1.2809e-05 deg
node 200.42085958395 4.9667e-05 deg
peri 227.778056600636 6.5388e-05 deg
M 319.5969169225428 0.0048314 deg
tp 2459142.095372035023
(2020-Oct-19.59537204)
0.017972 TDB
period 1261.644658029801
3.45
0.0092693
2.538e-05
d
yr
n .2853418335414507 2.0964e-06 deg/d
Q 3.64140937575415 1.7836e-05 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      166 days  
   first obs. used      2013-09-15  
   last obs. used      2014-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .46311  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:44:40  

Additional Information
 Earth MOID = .0202634 au 
 Jupiter MOID = 1.71855 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456587.5 (2013-Oct-22.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5946181937810396 1.9544e-06  
q .9269085231293379 1.6698e-07 au
tp 2456614.486563738616
(2013-Nov-17.98656374)
2.1663e-05 TDB
node 201.1188093275336 1.821e-05 deg
peri 226.706452034869 2.1085e-05 deg
i 5.522874541634535 1.5817e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      376  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      166 days  
   first obs. used      2013-09-15  
   last obs. used      2014-02-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .46311  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:44:40  

Additional Information
 Jupiter MOID = 1.71855 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.819548546665623E-12 -3.001108097152129E-13 -3.845230253825702E-11 1.060715401706312E-11 9.572607415468383E-12 2.544574605311379E-11
q -3.001108097152129E-13 2.788071551761893E-14 2.745474853481519E-12 -7.916168637673927E-13 -1.324079932159595E-12 -1.98562022495761E-12
tp -3.845230253825702E-11 2.745474853481519E-12 4.693060519918116E-10 -9.153602617956445E-11 -4.706779297661378E-12 -2.485315191449209E-10
node 1.060715401706312E-11 -7.916168637673927E-13 -9.153602617956445E-11 3.315937105050597E-10 -2.5949359262316E-10 2.109617658944951E-12
peri 9.572607415468383E-12 -1.324079932159595E-12 -4.706779297661378E-12 -2.5949359262316E-10 4.445690295218505E-10 1.406677484164483E-10
i 2.544574605311379E-11 -1.98562022495761E-12 -2.485315191449209E-10 2.109617658944951E-12 1.406677484164483E-10 2.501651555115555E-10

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 20.9   n/a MPO278281  
rotation period rot_per 5.346 h n/a LCDB (Rev. 2019-August); 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:
[Hicks, M.; Ebelhar (2013) Astronomer's Telegram 5526. http://www.astronomerstelegram.org]
[Warner, B.D. (2014) Minor Planet Bull. 41, 113-124.]

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