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JPL Small-Body Database Browser
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71401 (2000 AL170)
Classification: Main-belt Asteroid          SPK-ID: 2071401
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1907849098701961 3.8322e-08  
a 2.752078454235093 1.4705e-08 au
q 2.227023414388142 1.0814e-07 au
i 9.201342088344857 4.9239e-06 deg
node 152.7008405301705 2.9845e-05 deg
peri 280.6001230254235 3.3358e-05 deg
M 175.387564554771 1.383e-05 deg
tp 2458188.070024088409
(2018-Mar-10.57002409)
6.2508e-05 TDB
period 1667.591382950284
4.57
1.3365e-05
3.659e-08
d
yr
n .2158802232253635 1.7302e-09 deg/d
Q 3.277133494082044 1.751e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      8811 days (24.12 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:44:40  

Additional Information
 Earth MOID = 1.26375 au 
 Jupiter MOID = 2.07323 au 
 T_jup = 3.300 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457030.5 (2015-Jan-08.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1922532912372078 3.828e-08  
q 2.221483208490909 1.0805e-07 au
tp 2456523.163255789781
(2013-Aug-18.66325579)
6.1297e-05 TDB
node 152.7351743093012 2.9854e-05 deg
peri 280.7406272347846 3.3297e-05 deg
i 9.202540397375779 4.9254e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      8811 days (24.12 yr)  
   first obs. used      1996-03-12  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 13:44:40  

Additional Information
 Jupiter MOID = 2.07323 au 
 T_jup = 3.300 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.465357838400733E-15 -4.111105020471501E-15 -8.041160528992331E-13 1.006128240908901E-15 -2.064264211052525E-13 -2.489840420881761E-15
q -4.111105020471501E-15 1.16753389303968E-14 2.161224765041926E-12 1.855562737916153E-16 5.638742952558825E-13 8.042877490689541E-15
tp -8.041160528992331E-13 2.161224765041926E-12 3.757319524728881E-9 -1.101885376130071E-11 9.300373092559455E-10 1.518029560852989E-12
node 1.006128240908901E-15 1.855562737916153E-16 -1.101885376130071E-11 8.912866833947157E-10 -8.817972783147225E-10 5.736422574373724E-11
peri -2.064264211052525E-13 5.638742952558825E-13 9.300373092559455E-10 -8.817972783147225E-10 1.108674118671395E-9 -5.613147384514495E-11
i -2.489840420881761E-15 8.042877490689541E-15 1.518029560852989E-12 5.736422574373724E-11 -5.613147384514495E-11 2.425997404140426E-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 MPO296646  
diameter diameter 5.848 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71401 (2000 AL170)          Discovered 2000-Jan-07 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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