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72577 (2001 ER18)
Classification: Main-belt Asteroid          SPK-ID: 2072577
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 .1199336360064214 4.0614e-08  
a 2.657099086616479 1.5422e-08 au
q 2.338423531929223 1.0774e-07 au
i 13.52230777477628 7.1095e-06 deg
node 353.7207066493701 1.5654e-05 deg
peri 300.9031665420732 3.5037e-05 deg
M 72.20497242023488 3.0072e-05 deg
tp 2458883.196649694379
(2020-Feb-03.69664969)
0.00013276 TDB
period 1582.01301490992
4.33
1.3774e-05
3.771e-08
d
yr
n .2275581784771211 1.9812e-09 deg/d
Q 2.975774641303734 1.7272e-08 au
  Orbit Determination Parameters
   # obs. used (total)      914  
   data-arc span      18190 days (49.80 yr)  
   first obs. used      1971-03-25  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50129  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:02:50  

Additional Information
 Earth MOID = 1.35324 au 
 Jupiter MOID = 2.37296 au 
 T_jup = 3.338 
[ 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 15.13   n/a E2021B10  

72577 (2001 ER18)          Discovered 2001-Mar-14 by LONEOS at Anderson Mesa
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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