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382444 (1999 YK2)
Classification: Main-belt Asteroid          SPK-ID: 2382444
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446857578832573 9.9876e-08  
a 2.782571544902351 2.2148e-08 au
q 2.379973072063768 2.8511e-07 au
i 6.055221279031426 7.1618e-06 deg
node 99.91266879225407 0.00011266 deg
peri 331.866176533109 0.00012598 deg
M 172.4666564091496 5.1591e-05 deg
tp 2458188.285797435756
(2018-Mar-10.78579744)
0.00023882 TDB
period 1695.38343823088
4.64
2.0242e-05
5.542e-08
d
yr
n .2123413452567741 2.5352e-09 deg/d
Q 3.185170017740934 2.5353e-08 au
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:35:12  

Additional Information
 Earth MOID = 1.39682 au 
 Jupiter MOID = 2.0823 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457295.5 (2015-Sep-30.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1458912928402016 9.9303e-08  
q 2.375513770134277 2.8298e-07 au
tp 2456495.288202040537
(2013-Jul-21.78820204)
0.00023051 TDB
node 99.92219179621191 0.00011268 deg
peri 332.1163162703359 0.00012579 deg
i 6.055831028031572 7.1644e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      119  
   data-arc span      7021 days (19.22 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57684  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:35:12  

Additional Information
 Jupiter MOID = 2.0823 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.861010779307474E-15 -2.804540243380694E-14 -1.519145790086402E-11 -1.496084138226034E-13 -3.540280082435373E-12 -3.722811718445305E-14
q -2.804540243380694E-14 8.007764266327519E-14 4.344751041248408E-11 4.334509924789201E-13 1.016040424386211E-11 1.065784834243945E-13
tp -1.519145790086402E-11 4.344751041248408E-11 5.313576804932911E-8 3.38684913201886E-10 1.309941904332783E-8 8.594244939668253E-11
node -1.496084138226034E-13 4.334509924789201E-13 3.38684913201886E-10 1.269722410178759E-8 -1.254157985807388E-8 -4.114214756130905E-10
peri -3.540280082435373E-12 1.016040424386211E-11 1.309941904332783E-8 -1.254157985807388E-8 1.582256251335157E-8 4.306937549410781E-10
i -3.722811718445305E-14 1.065784834243945E-13 8.594244939668253E-11 -4.114214756130905E-10 4.306937549410781E-10 5.132895746779408E-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 17.0   n/a MPO427903  

382444 (1999 YK2)          Discovered 1999-Dec-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-01-21

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