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382425 (1998 YQ21)
Classification: Main-belt Asteroid          SPK-ID: 2382425
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1957760915262418 6.8317e-08  
a 2.418175303096513 2.2019e-08 au
q 1.944754393630993 1.6013e-07 au
i 5.513801958426344 1.0112e-05 deg
node 114.1957808462963 6.2155e-05 deg
peri 316.7911526268077 6.9099e-05 deg
M 279.3346787916099 3.2118e-05 deg
tp 2459308.261624493055
(2021-Apr-03.76162449)
0.00012563 TDB
period 1373.504538973757
3.76
1.876e-05
5.136e-08
d
yr
n .2621032474118954 3.5799e-09 deg/d
Q 2.891596212562034 2.633e-08 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      7491 days (20.51 yr)  
   first obs. used      1998-12-26  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62215  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:59:34  

Additional Information
 Earth MOID = .963722 au 
 Jupiter MOID = 2.39638 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457268.5 (2015-Sep-03.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1968331269734946 6.7813e-08  
q 1.941737021520247 1.5916e-07 au
tp 2457931.363921738664
(2017-Jun-26.86392174)
0.00011105 TDB
node 114.2760352811816 6.2333e-05 deg
peri 316.1264938104052 6.9144e-05 deg
i 5.507322952994229 1.0097e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      7491 days (20.51 yr)  
   first obs. used      1998-12-26  
   last obs. used      2019-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62215  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:59:34  

Additional Information
 Jupiter MOID = 2.39638 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.598559463559337E-15 -1.073234405962139E-14 3.758024718517797E-12 -4.481109263314672E-14 9.426652041934294E-13 -2.759384021090292E-15
q -1.073234405962139E-14 2.533067452794168E-14 -7.734492786470504E-12 1.007774868101192E-13 -1.955880465515013E-12 7.213816246620477E-15
tp 3.758024718517797E-12 -7.734492786470504E-12 1.233133727484023E-8 -7.932817590468904E-11 3.320919152413765E-9 1.25100366883178E-12
node -4.481109263314672E-14 1.007774868101192E-13 -7.932817590468904E-11 3.885454611673833E-9 -3.887512960716634E-9 8.847913385243438E-11
peri 9.426652041934294E-13 -1.955880465515013E-12 3.320919152413765E-9 -3.887512960716634E-9 4.780861053965181E-9 -8.775707949871982E-11
i -2.759384021090292E-15 7.213816246620477E-15 1.25100366883178E-12 8.847913385243438E-11 -8.775707949871982E-11 1.01955682095174E-10

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.4   n/a MPO437565  

382425 (1998 YQ21)          Discovered 1998-Dec-26 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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