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160644 (1999 XM11)
Classification: Main-belt Asteroid          SPK-ID: 2160644
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2990806505325243 4.5858e-08  
a 2.560084193712911 1.2656e-08 au
q 1.794412547639221 1.232e-07 au
i 3.995325059173343 4.7516e-06 deg
node 303.129748733753 5.705e-05 deg
peri 94.63015806704546 5.8982e-05 deg
M 11.08954500735892 1.8777e-05 deg
tp 2458954.411664221374
(2020-Apr-14.91166422)
7.7739e-05 TDB
period 1496.166061754117
4.10
1.1095e-05
3.038e-08
d
yr
n .2406150020392344 1.7843e-09 deg/d
Q 3.325755839786601 1.6441e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53415  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:41:34  

Additional Information
 Earth MOID = .807295 au 
 Jupiter MOID = 2.13628 au 
 T_jup = 3.368 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456834.5 (2014-Jun-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3008168120667405 4.6925e-08  
q 1.789329276265816 1.2681e-07 au
tp 2457453.384019570706
(2016-Mar-05.88401957)
6.6544e-05 TDB
node 303.683404176249 5.7177e-05 deg
peri 93.41199989129113 5.9034e-05 deg
i 3.989580878873934 4.7578e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-09-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53415  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 18:41:34  

Additional Information
 Jupiter MOID = 2.13628 au 
 T_jup = 3.368 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.201935559014125E-15 -5.940701344532386E-15 -2.307895756881042E-12 2.808015252810276E-14 -4.719102189049862E-13 -4.252045154021828E-15
q -5.940701344532386E-15 1.607970114151955E-14 6.474415036144772E-12 -7.728371141977199E-14 1.326937928364239E-12 1.204132604241257E-14
tp -2.307895756881042E-12 6.474415036144772E-12 4.428058207714901E-9 -5.362987050688209E-11 9.896230025884569E-10 6.833853323747079E-12
node 2.808015252810276E-14 -7.728371141977199E-14 -5.362987050688209E-11 3.269192834375598E-9 -3.272118893519479E-9 1.042047337130763E-10
peri -4.719102189049862E-13 1.326937928364239E-12 9.896230025884569E-10 -3.272118893519479E-9 3.484959665091215E-9 -1.025947963976706E-10
i -4.252045154021828E-15 1.204132604241257E-14 6.833853323747079E-12 1.042047337130763E-10 -1.025947963976706E-10 2.263701370380271E-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 15.5   n/a MPO449862  

160644 (1999 XM11)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20070828/Numbers.arcLast Updated: 2007-08-30
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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