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49897 (1999 XY160)
Classification: Main-belt Asteroid          SPK-ID: 2049897
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1770306181652966 6.131e-08  
a 2.320847552969229 9.9897e-09 au
q 1.90998647599967 1.4395e-07 au
i 5.977179615443384 7.1795e-06 deg
node 127.5929362746946 5.9698e-05 deg
peri 91.53988796797415 6.4783e-05 deg
M 182.6726591076166 2.8062e-05 deg
tp 2459636.623660387385
(2022-Feb-26.12366039)
0.00010279 TDB
period 1291.422499130785
3.54
8.3381e-06
2.283e-08
d
yr
n .2787623726877179 1.7998e-09 deg/d
Q 2.731708629938787 1.1758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:36:39  

Additional Information
 Earth MOID = .913678 au 
 Jupiter MOID = 2.26031 au 
 T_jup = 3.549 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457219.5 (2015-Jul-16.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1767107564152545 6.1393e-08  
q 1.911013018109166 1.4406e-07 au
tp 2457053.649128499144
(2015-Jan-31.14912850)
9.5347e-05 TDB
node 127.6254653044956 5.9717e-05 deg
peri 91.56303665082503 6.4829e-05 deg
i 5.976139161629993 7.1794e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      7789 days (21.33 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56807  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 09:36:39  

Additional Information
 Jupiter MOID = 2.26031 au 
 T_jup = 3.549 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.769109036286588E-15 -8.830030128261377E-15 -4.237739131630538E-12 -2.058059104403118E-14 -1.138754762996075E-12 -2.729308932816252E-15
q -8.830030128261377E-15 2.075211215560054E-14 1.013747779133122E-11 4.68655790378885E-14 2.724443605484066E-12 6.229835315186922E-15
tp -4.237739131630538E-12 1.013747779133122E-11 9.091080083341834E-9 3.421181302429942E-11 2.452022503540315E-9 5.622238884729783E-12
node -2.058059104403118E-14 4.68655790378885E-14 3.421181302429942E-11 3.566111633346519E-9 -3.53716600402688E-9 2.670705807791691E-10
peri -1.138754762996075E-12 2.724443605484066E-12 2.452022503540315E-9 -3.53716600402688E-9 4.20280615225936E-9 -2.642112428036214E-10
i -2.729308932816252E-15 6.229835315186922E-15 5.622238884729783E-12 2.670705807791691E-10 -2.642112428036214E-10 5.154350535415687E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO439431  

49897 (1999 XY160)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XY160 = 1998 SZ112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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