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74058 (1998 KQ18)
Classification: Main-belt Asteroid          SPK-ID: 2074058
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .199263777319846 5.0696e-08  
a 2.416589746537051 1.4311e-08 au
q 1.935050945409669 1.2788e-07 au
i 2.64715520193975 5.8822e-06 deg
node 30.64866537805869 0.00010302 deg
peri 223.5714920875983 0.00010432 deg
M 346.7937545535783 2.1122e-05 deg
tp 2459250.836113875319
(2021-Feb-05.33611388)
8.0822e-05 TDB
period 1372.153884965443
3.76
1.2189e-05
3.337e-08
d
yr
n .2623612438404213 2.3305e-09 deg/d
Q 2.898128547664434 1.7163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1994-03-14  
   last obs. used      2020-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:10:45  

Additional Information
 Earth MOID = .919904 au 
 Jupiter MOID = 2.15499 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456759.5 (2014-Apr-12.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1998613475404865 5.0504e-08  
q 1.933749506815038 1.2749e-07 au
tp 2456505.944336372707
(2013-Aug-01.44433637)
6.5554e-05 TDB
node 30.67565821055491 0.00010303 deg
peri 223.5567328986576 0.00010433 deg
i 2.647701962548398 5.8811e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      454  
   data-arc span      9534 days (26.10 yr)  
   first obs. used      1994-03-14  
   last obs. used      2020-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59992  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:10:45  

Additional Information
 Jupiter MOID = 2.15499 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.550631776107708E-15 -6.417493358859919E-15 -1.568156633795489E-12 7.603757667668696E-15 -3.690010604658404E-13 -1.521331296516771E-16
q -6.417493358859919E-15 1.62539266266139E-14 4.165999111134808E-12 -2.084373262032907E-14 9.843313125138277E-13 7.11337725493416E-16
tp -1.568156633795489E-12 4.165999111134808E-12 4.297387482547044E-9 -1.545752411073311E-11 1.092337008270581E-9 1.78056118057108E-12
node 7.603757667668696E-15 -2.084373262032907E-14 -1.545752411073311E-11 1.061506635825571E-8 -1.060733784090293E-8 -8.130499391469786E-11
peri -3.690010604658404E-13 9.843313125138277E-13 1.092337008270581E-9 -1.060733784090293E-8 1.088399889446875E-8 8.168877075387069E-11
i -1.521331296516771E-16 7.11337725493416E-16 1.78056118057108E-12 -8.130499391469786E-11 8.168877075387069E-11 3.458677593672238E-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 16.43   n/a E2021B10  

74058 (1998 KQ18)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KQ18 = 1999 UH33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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