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160916 (2001 XB44)
Classification: Main-belt Asteroid          SPK-ID: 2160916
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0627359090894037 5.7862e-08  
a 2.92430643183336 3.3497e-08 au
q 2.740847409376304 1.6705e-07 au
i 10.5350824815025 9.4427e-06 deg
node 330.3269296107418 4.3153e-05 deg
peri 309.8707850047815 0.00010394 deg
M 62.67510505219173 9.6898e-05 deg
tp 2458682.501321012880
(2019-Jul-18.00132101)
0.00049117 TDB
period 1826.554966920794
5.00
3.1384e-05
8.592e-08
d
yr
n .1970923440682916 3.3864e-09 deg/d
Q 3.107765454290416 3.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 12:21:11  

Additional Information
 Earth MOID = 1.73823 au 
 Jupiter MOID = 2.10452 au 
 T_jup = 3.251 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456725.5 (2014-Mar-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06310031340348765 5.7939e-08  
q 2.7410551622198 1.6778e-07 au
tp 2456866.420951456204
(2014-Jul-27.92095146)
0.00048945 TDB
node 330.4778099137604 4.3162e-05 deg
peri 312.1278917982452 0.00010376 deg
i 10.531016297376 9.4455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      400  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1998-03-25  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65206  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 12:21:11  

Additional Information
 Jupiter MOID = 2.10452 au 
 T_jup = 3.251 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.356951181773615E-15 -9.553933776366405E-15 3.961641007520635E-12 6.009263004052051E-15 7.428357256445378E-13 3.708043056946876E-15
q -9.553933776366405E-15 2.815081871304248E-14 -1.201149182442217E-11 -1.959369552983891E-14 -2.287249435809137E-12 -6.543977313721066E-15
tp 3.961641007520635E-12 -1.201149182442217E-11 2.395598666978622E-7 -2.033185858721795E-10 4.626639503622012E-8 -4.003444101826609E-11
node 6.009263004052051E-15 -1.959369552983891E-14 -2.033185858721795E-10 1.862995598275891E-9 -1.869305024564754E-9 1.728296446666417E-10
peri 7.428357256445378E-13 -2.287249435809137E-12 4.626639503622012E-8 -1.869305024564754E-9 1.076561244446732E-8 -1.77462411803673E-10
i 3.708043056946876E-15 -6.543977313721066E-15 -4.003444101826609E-11 1.728296446666417E-10 -1.77462411803673E-10 8.921757258323759E-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 15.1   n/a MPO396309  

160916 (2001 XB44)          Discovered 2001-Dec-09 by LINEAR at Socorro
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30

[ show close-approach data ]
Alternate Designations
 2001 XB44 = 2003 ET45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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