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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 ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1150942447634125 2.9016e-08  
a 2.192130750465606 8.3013e-09 au
q 1.939829117318114 6.3723e-08 au
i 3.622563100326611 3.5514e-06 deg
node 146.0016068273823 5.3108e-05 deg
peri 257.0703451875093 5.6642e-05 deg
M 265.5463011861604 2.2664e-05 deg
tp 2459511.538806687861
(2021-Oct-24.03880669)
7.5681e-05 TDB
period 1185.490582304473
3.25
6.7339e-06
1.844e-08
d
yr
n .3036717502219179 1.7249e-09 deg/d
Q 2.444432383613097 9.2567e-09 au
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      8006 days (21.92 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:12  

Additional Information
 Earth MOID = .951091 au 
 Jupiter MOID = 2.89548 au 
 T_jup = 3.661 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457289.5 (2015-Sep-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147925309606757 2.8958e-08  
q 1.93977041824936 6.3509e-08 au
tp 2457141.797547758749
(2015-Apr-29.29754776)
6.8907e-05 TDB
node 146.0386051478066 5.3111e-05 deg
peri 257.1474969329545 5.668e-05 deg
i 3.622045133325118 3.5523e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      841  
   data-arc span      8006 days (21.92 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55271  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:16:12  

Additional Information
 Jupiter MOID = 2.89548 au 
 T_jup = 3.661 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.385487215703193E-16 -1.82687211662837E-15 6.25622836863482E-14 -7.160780209744213E-16 2.215861888064216E-14 8.379788079587215E-16
q -1.82687211662837E-15 4.033451068692585E-15 9.240735107341923E-14 1.472379853616075E-15 1.720661605881475E-14 -1.765643262043731E-15
tp 6.25622836863482E-14 9.240735107341923E-14 4.748147779781978E-9 -8.271123685374151E-12 1.374342039237463E-9 7.668418198711605E-13
node -7.160780209744213E-16 1.472379853616075E-15 -8.271123685374151E-12 2.820779204029797E-9 -2.817014093163291E-9 -1.780562245766974E-11
peri 2.215861888064216E-14 1.720661605881475E-14 1.374342039237463E-9 -2.817014093163291E-9 3.212577634973859E-9 1.801026849043712E-11
i 8.379788079587215E-16 -1.765643262043731E-15 7.668418198711605E-13 -1.780562245766974E-11 1.801026849043712E-11 1.261848051413943E-11

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 15.97   n/a E2021B10  

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

[ 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
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 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:14 2020-Nov-12 23:16
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 21 CATAB v2.0f-lin.ifort 2020-Nov-12 23:16:14 2020-Nov-12 23:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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