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74141 (1998 QK77)
Classification: Main-belt Asteroid          SPK-ID: 2074141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2321330565370369 6.0741e-08  
a 2.752408326382989 2.247e-08 au
q 2.113483368741715 1.7133e-07 au
i 29.65099056128686 7.0818e-06 deg
node 191.6315526211619 1.1323e-05 deg
peri 192.1701701570123 1.6258e-05 deg
M 254.8309268586655 1.5554e-05 deg
tp 2459487.751592313580
(2021-Sep-30.25159231)
7.6469e-05 TDB
period 1667.891215482694
4.57
2.0425e-05
5.592e-08
d
yr
n .2158414149904942 2.6432e-09 deg/d
Q 3.391333284024263 2.7686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      11212 days (30.70 yr)  
   first obs. used      1989-10-03  
   last obs. used      2020-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64322  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:48:33  

Additional Information
 Earth MOID = 1.12007 au 
 Jupiter MOID = 2.08069 au 
 T_jup = 3.120 
[ 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 15.1   n/a MPO474627  

74141 (1998 QK77)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QK77 = 1989 TH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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