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(2019 YW2)
Classification: Apollo [NEO]          SPK-ID: 3946728
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5029880137409197 8.5499e-05  
a 1.672867979217026 0.00024697 au
q .831435437099868 2.0281e-05 au
i 1.875594100349441 0.00026223 deg
node 271.9942189804999 0.00011217 deg
peri 119.2799227509288 0.0006179 deg
M 183.4536525711518 0.041337 deg
tp 2459588.067333896052
(2022-Jan-08.56733390)		 0.17657 TDB
period 790.2980845231576
2.16		 0.17501
0.0004792		 d
yr
n .4555243231004581 0.00010088 deg/d
Q 2.514300521334184 0.0003712 au
   Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      39 days  
   first obs. used      2019-12-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .49385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-03 06:34:30  

Additional Information
 Earth MOID = .00184048 au 
 Jupiter MOID = 2.93815 au 
 T_jup = 4.090 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458862.5 (2020-Jan-14.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5028991221477879 8.5462e-05  
q .8317280931497022 2.0167e-05 au
tp 2458797.759959171295
(2019-Nov-10.25995917)		 0.0015414 TDB
node 272.000023109202 0.00011356 deg
peri 119.2890801429604 0.0006183 deg
i 1.875654968940283 0.0002622 deg
   Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      39 days  
   first obs. used      2019-12-24  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .49385  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Apr-03 06:34:30  

Additional Information
 Jupiter MOID = 2.93815 au 
 T_jup = 4.090 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.303752163888495E-9 -1.723372572383085E-9 1.31699667630792E-7 9.133304829106146E-9 -5.268450332609185E-8 2.23997585795674E-8
q -1.723372572383085E-9 4.066915746258436E-10 -3.107738539342809E-8 -2.156711294113133E-9 1.243613688750241E-8 -5.285096589330086E-9
tp 1.31699667630792E-7 -3.107738539342809E-8 2.375793954208118E-6 1.649683243014483E-7 -9.495572050000171E-7 4.038384658160863E-7
node 9.133304829106146E-9 -2.156711294113133E-9 1.649683243014483E-7 1.289620847040376E-8 -6.727022737215485E-8 2.817422806095918E-8
peri -5.268450332609185E-8 1.243613688750241E-8 -9.495572050000171E-7 -6.727022737215485E-8 3.822932795145705E-7 -1.617738848091436E-7
i 2.23997585795674E-8 -5.285096589330086E-9 4.038384658160863E-7 2.817422806095918E-8 -1.617738848091436E-7 6.875007478153877E-8

[ 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 24.0   .56299 E2020-AA1 autocmod 2.8
rotation period rot_per 0.7390 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]

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