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72551 (2001 EQ1)
Classification: Main-belt Asteroid          SPK-ID: 2072551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .054260353779692 3.609e-08  
a 2.64847907994728 1.5664e-08 au
q 2.504771668091228 9.9945e-08 au
i 22.41715887811767 4.7295e-06 deg
node 134.4806729043046 9.6474e-06 deg
peri 313.5143553846536 4.5495e-05 deg
M 278.1124867453324 4.5803e-05 deg
tp 2459558.603387362512
(2021-Dec-10.10338736)
0.00020092 TDB
period 1574.320849743913
4.31
1.3966e-05
3.824e-08
d
yr
n .2286700325785302 2.0286e-09 deg/d
Q 2.792186491803332 1.6514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      888  
   data-arc span      7688 days (21.05 yr)  
   first obs. used      1999-11-10  
   last obs. used      2020-11-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57126  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:02:42  

Additional Information
 Earth MOID = 1.54761 au 
 Jupiter MOID = 2.31491 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.91   n/a MPCxxxxx  
diameter diameter 3.551 km 0.278 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.202   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72551 (2001 EQ1)          Discovered 2001-Mar-01 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2001 EQ1 = 2002 NJ31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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