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JPL Small-Body Database Browser
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172394 (2003 AL78)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172394
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03096798747086016 5.0234e-08  
a 3.228612445473843 3.6047e-08 au
q 3.128628815714146 1.6103e-07 au
i 17.62129710437958 6.3151e-06 deg
node 86.14648149709802 1.7302e-05 deg
peri 104.1731687845872 0.00010506 deg
M 299.6130503745708 0.0001042 deg
tp 2459355.937211581527
(2021-May-21.43721158)
0.00061553 TDB
period 2118.95777089337
5.80
3.5487e-05
9.716e-08
d
yr
n .169894844033735 2.8453e-09 deg/d
Q 3.32859607523354 3.7163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      6676 days (18.28 yr)  
   first obs. used      2001-10-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:47:55  

Additional Information
 Earth MOID = 2.16277 au 
 Jupiter MOID = 1.8048 au 
 T_jup = 3.112 
[ show covariance matrix ]

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 14.4   n/a MPO325658  
diameter diameter 5.424 km 0.461 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.125   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172394 (2003 AL78)          Discovered 2003-Jan-10 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2003 AL78 = 2004 FN136 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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