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74131 (1998 QN69)
Classification: Main-belt Asteroid          SPK-ID: 2074131
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128082020307994 4.4388e-08  
a 2.608356107286876 1.4617e-08 au
q 2.314112144567789 1.1898e-07 au
i 13.8977930971875 5.0034e-06 deg
node 275.8451396651723 2.6699e-05 deg
peri 119.7861202619376 4.1282e-05 deg
M 11.49913660073577 3.078e-05 deg
tp 2458951.351362331958
(2020-Apr-11.85136233)
0.00013154 TDB
period 1538.681570176595
4.21
1.2934e-05
3.541e-08
d
yr
n .2339665379619012 1.9666e-09 deg/d
Q 2.902600070005963 1.6266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      821  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:43  

Additional Information
 Earth MOID = 1.35693 au 
 Jupiter MOID = 2.49255 au 
 T_jup = 3.361 
[ 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 14.8   n/a MPO351366  

74131 (1998 QN69)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QN69 = 1999 XR153 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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