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30736 (1981 EU7)
Classification: Main-belt Asteroid          SPK-ID: 2030736
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1210790533448313 4.0507e-08  
a 2.365967932136767 8.9597e-09 au
q 2.079498774669419 9.5623e-08 au
i 6.054327180713996 3.6508e-06 deg
node 291.0253174066931 4.1669e-05 deg
peri 85.00561991945223 4.4602e-05 deg
M 128.0092499418602 1.4846e-05 deg
tp 2458727.838139660786
(2019-Sep-01.33813966)
5.4881e-05 TDB
period 1329.265422611259
3.64
7.5507e-06
2.067e-08
d
yr
n .270826272824281 1.5384e-09 deg/d
Q 2.652437089604115 1.0045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1155  
   data-arc span      14659 days (40.13 yr)  
   first obs. used      1981-02-02  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50177  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 04:31:18  

Additional Information
 Earth MOID = 1.08958 au 
 Jupiter MOID = 2.8366 au 
 T_jup = 3.530 
[ 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 15.47   n/a MPCxxxxx  

30736 (1981 EU7)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EU7 = 1993 OS6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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