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JPL Small-Body Database Browser
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154404 (2003 AU56)
Classification: Main-belt Asteroid          SPK-ID: 2154404
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1376218524269051 5.293e-08  
a 2.372700315046223 1.4051e-08 au
q 2.046164902435661 1.2387e-07 au
i 3.111749947140753 6.1108e-06 deg
node 330.25424268554 9.0653e-05 deg
peri 160.2704631160069 9.3133e-05 deg
M 263.9873972128405 2.2229e-05 deg
tp 2459356.531563152030
(2021-May-22.03156315)
8.4181e-05 TDB
period 1334.943111779404
3.65
1.1858e-05
3.247e-08
d
yr
n .2696744129569238 2.3955e-09 deg/d
Q 2.699235727656786 1.5985e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      6546 days (17.92 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59272  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:27  

Additional Information
 Earth MOID = 1.06112 au 
 Jupiter MOID = 2.34067 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456728.5 (2014-Mar-12.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368548737945015 5.2807e-08  
q 2.048690993386809 1.2353e-07 au
tp 2456684.546906586938
(2014-Jan-27.04690659)
7.4197e-05 TDB
node 330.3718410744012 9.0676e-05 deg
peri 159.9352941411334 9.3204e-05 deg
i 3.111038111960941 6.1091e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      6546 days (17.92 yr)  
   first obs. used      2001-09-19  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59272  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:37:27  

Additional Information
 Jupiter MOID = 2.34067 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.788533828463114E-15 -6.492623163352154E-15 8.353676244662403E-13 -7.291712305296869E-15 2.52104657005209E-13 -7.834943385779456E-16
q -6.492623163352154E-15 1.526086947153438E-14 -1.685013189165871E-12 1.75257519514573E-14 -5.146855775353641E-13 1.896046773633479E-15
tp 8.353676244662403E-13 -1.685013189165871E-12 5.505210474026558E-9 -1.496493992532922E-12 1.617526280539769E-9 -5.011291523030232E-13
node -7.291712305296869E-15 1.75257519514573E-14 -1.496493992532922E-12 8.222110071795525E-9 -8.209586059121646E-9 2.649809925457111E-11
peri 2.52104657005209E-13 -5.146855775353641E-13 1.617526280539769E-9 -8.209586059121646E-9 8.686987941756051E-9 -2.658649218623644E-11
i -7.834943385779456E-16 1.896046773633479E-15 -5.011291523030232E-13 2.649809925457111E-11 -2.658649218623644E-11 3.732094177491574E-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 16.4   n/a MPO436781  
diameter diameter 1.575 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.215   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154404 (2003 AU56)          Discovered 2003-Jan-05 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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