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43165 (1999 XA156)
Classification: Main-belt Asteroid          SPK-ID: 2043165
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1912401159635742 3.2005e-08  
a 2.583101169866592 1.1443e-08 au
q 2.089108602595661 7.9955e-08 au
i 8.022077672837156 3.5296e-06 deg
node 107.400306779415 3.4129e-05 deg
peri 184.5036698296745 3.6324e-05 deg
M 204.1992941302205 1.3933e-05 deg
tp 2460052.762322600770
(2023-Apr-18.26232260)
6.0374e-05 TDB
period 1516.388740457582
4.15
1.0077e-05
2.759e-08
d
yr
n .2374061415751262 1.5776e-09 deg/d
Q 3.077093737137524 1.3632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1304  
   data-arc span      8315 days (22.77 yr)  
   first obs. used      1998-07-31  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:03:01  

Additional Information
 Earth MOID = 1.07262 au 
 Jupiter MOID = 2.11367 au 
 T_jup = 3.384 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456931.5 (2014-Oct-01.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1918445807341825 3.189e-08  
q 2.086783128097456 7.9678e-08 au
tp 2457022.126664392126
(2014-Dec-30.62666439)
5.5101e-05 TDB
node 107.4460218008833 3.4153e-05 deg
peri 184.6965330651859 3.6347e-05 deg
i 8.020572499661785 3.5289e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1304  
   data-arc span      8315 days (22.77 yr)  
   first obs. used      1998-07-31  
   last obs. used      2021-05-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51746  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 21:03:01  

Additional Information
 Jupiter MOID = 2.11367 au 
 T_jup = 3.384 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.016964059386813E-15 -2.525830351039091E-15 1.274005794923089E-13 2.21517194319081E-15 6.927131808277147E-15 -6.017823884809084E-16
q -2.525830351039091E-15 6.34856257142574E-15 -2.903638888089996E-13 -3.034977326380058E-15 -1.538168184604308E-14 1.636968425740331E-15
tp 1.274005794923089E-13 -2.903638888089996E-13 3.036086737650969E-9 1.336158160778641E-11 7.165359334551804E-10 -2.488371216132806E-12
node 2.21517194319081E-15 -3.034977326380058E-15 1.336158160778641E-11 1.166412135540743E-9 -1.151458773570573E-9 -8.710723254158851E-12
peri 6.927131808277147E-15 -1.538168184604308E-14 7.165359334551804E-10 -1.151458773570573E-9 1.321126158789254E-9 8.011026679792604E-12
i -6.017823884809084E-16 1.636968425740331E-15 -2.488371216132806E-12 -8.710723254158851E-12 8.011026679792604E-12 1.245306741619893E-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 14.71   n/a MPCxxxxx  
diameter diameter 3.079 km 0.276 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.269   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

43165 (1999 XA156)          Discovered 1999-Dec-08 by LINEAR at Socorro
Reference: 20020624/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XA156 = 1998 QN108 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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