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52791 (1998 QC49)
Classification: Main-belt Asteroid          SPK-ID: 2052791
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1154934288079944 2.9129e-08  
a 2.19133929087891 8.2967e-09 au
q 1.938254002493626 6.3882e-08 au
i 3.621840050423797 3.7316e-06 deg
node 146.0165736260054 5.32e-05 deg
peri 257.1686122743966 5.683e-05 deg
M 204.7015285288389 2.2598e-05 deg
tp 2459511.625497053220
(2021-Oct-24.12549705)
7.6005e-05 TDB
period 1184.848615675711
3.24
6.729e-06
1.842e-08
d
yr
n .3038362835869073 1.7255e-09 deg/d
Q 2.444424579264195 9.2549e-09 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      7974 days (21.83 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55252  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 22:05:48  

Additional Information
 Earth MOID = .950555 au 
 Jupiter MOID = 2.8956 au 
 T_jup = 3.661 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO381645  

52791 (1998 QC49)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

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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
1970-May-19 00:31 00:01 Iris 0.0168600589615794 0.0168585679684099 0.0168615518837762 3.57959245070357 3.57959235545019 2440725.521482019 1.16131713330597 326.528114507921 33.33705473258 -78.1925273492028 74021.6975705335 T 20 CATAB v2.0f-lin.ifort 2020-Jun-23 22:06:00 2020-Jun-23 22:06
2051-Jun-26 02:35 00:01 Iris 0.0216504947562273 0.0216488621247959 0.0216521295350464 3.52513597475348 3.52513589943018 2470348.607714074 1.4500471297088 377.80738512051 31.7232880169129 78.5152786796765 99995.4334174135 T 20 CATAB v2.0f-lin.ifort 2020-Jun-23 22:06:00 2020-Jun-23 22:06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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