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48890 (1998 KC16)
Classification: Main-belt Asteroid          SPK-ID: 2048890
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .137027061450603 4.7711e-08  
a 2.233683148717222 7.6661e-09 au
q 1.927608110636771 1.0573e-07 au
i 5.740917559162482 4.8099e-06 deg
node 81.81004468279131 4.2771e-05 deg
peri 146.50282153361 4.476e-05 deg
M 217.5957855590366 1.5195e-05 deg
tp 2459482.837602381251
(2021-Sep-25.33760238)
5.2552e-05 TDB
period 1219.356727179144
3.34
6.2773e-06
1.719e-08
d
yr
n .2952376379903384 1.5199e-09 deg/d
Q 2.539758186797674 8.7165e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1135  
   data-arc span      8681 days (23.77 yr)  
   first obs. used      1997-01-12  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:19  

Additional Information
 Earth MOID = .920071 au 
 Jupiter MOID = 2.44892 au 
 T_jup = 3.621 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457077.5 (2015-Feb-24.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368451647900419 4.7716e-08  
q 1.927731347987326 1.0571e-07 au
tp 2457044.590409142747
(2015-Jan-22.09040914)
4.8223e-05 TDB
node 81.82586722678879 4.2786e-05 deg
peri 146.5635329646456 4.4781e-05 deg
i 5.74016830471048 4.8093e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1135  
   data-arc span      8681 days (23.77 yr)  
   first obs. used      1997-01-12  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:35:19  

Additional Information
 Jupiter MOID = 2.44892 au 
 T_jup = 3.621 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.276797549590255E-15 -5.034477275097825E-15 -6.720358177783653E-14 -6.889132719758003E-15 -2.751195876894988E-14 1.172052957984427E-15
q -5.034477275097825E-15 1.117506063718697E-14 2.241530828545142E-13 1.52011589166581E-14 8.026568084180665E-14 -2.496283334982419E-15
tp -6.720358177783653E-14 2.241530828545142E-13 2.325505535119776E-9 6.920150696011234E-13 6.543552573860513E-10 -5.331887068609616E-13
node -6.889132719758003E-15 1.52011589166581E-14 6.920150696011234E-13 1.83065663646985E-9 -1.820981665669352E-9 -7.958641377480878E-11
peri -2.751195876894988E-14 8.026568084180665E-14 6.543552573860513E-10 -1.820981665669352E-9 2.005300765266719E-9 7.905307721399678E-11
i 1.172052957984427E-15 -2.496283334982419E-15 -5.331887068609616E-13 -7.958641377480878E-11 7.905307721399678E-11 2.312938924636749E-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 15.3   n/a MPO452836  

48890 (1998 KC16)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KC16 = 1999 TD304 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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