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118322 (1998 XK48)
Classification: Main-belt Asteroid          SPK-ID: 2118322
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871865789120467 3.3545e-08  
a 2.285685769345752 8.8946e-09 au
q 1.857836069713972 7.688e-08 au
i 5.088021873899686 4.0905e-06 deg
node 51.06177576403091 4.2348e-05 deg
peri 14.2117664001169 4.3905e-05 deg
M 149.7415506400593 1.168e-05 deg
tp 2458675.495484407859
(2019-Jul-10.99548441)
3.9943e-05 TDB
period 1262.18557778584
3.46
7.3676e-06
2.017e-08
d
yr
n .2852195480093521 1.6649e-09 deg/d
Q 2.713535468977534 1.056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      760  
   data-arc span      7828 days (21.43 yr)  
   first obs. used      1998-12-14  
   last obs. used      2020-05-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61003  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:43  

Additional Information
 Earth MOID = .871143 au 
 Jupiter MOID = 2.60005 au 
 T_jup = 3.573 
[ 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 16.11   n/a E2021B55  

118322 (1998 XK48)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1998 XK48 = 2000 KQ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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