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(1998 QK28)
Classification: Apollo [NEO, PHA]          SPK-ID: 3013662
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5782937926407414 1.3409e-07  
a 2.338287340437203 8.2422e-08 au
q .9860702860519405 2.8073e-07 au
i 7.865153581540504 1.8293e-05 deg
node 174.5256860867355 5.1316e-05 deg
peri 204.7527692550853 7.4795e-05 deg
M 23.88397416684278 0.00012034 deg
tp 2458913.853836785433
(2020-Mar-05.35383679)
0.00043199 TDB
period 1306.006217363428
3.58
6.9053e-05
1.891e-07
d
yr
n .2756495300051249 1.4575e-08 deg/d
Q 3.690504394822466 1.3009e-07 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      6734 days (18.44 yr)  
   first obs. used      1998-08-25  
   last obs. used      2017-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .62287  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:17:44  

Additional Information
 Earth MOID = .0114677 au 
 Jupiter MOID = 1.77767 au 
 T_jup = 3.309 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.2   n/a MPO399340  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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