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30748 (1981 ES25)
Classification: Main-belt Asteroid          SPK-ID: 2030748
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438990925364606 3.3682e-08  
a 2.397937654563953 9.1106e-09 au
q 2.052876602113191 7.8679e-08 au
i 2.109997451300778 3.7746e-06 deg
node 22.46755820252767 0.00010276 deg
peri 244.6491399545041 0.00010372 deg
M 184.1617062842043 1.4496e-05 deg
tp 2459862.970003159476
(2022-Oct-10.47000316)
5.542e-05 TDB
period 1356.298426797051
3.71
7.7296e-06
2.116e-08
d
yr
n .2654283105305618 1.5127e-09 deg/d
Q 2.742998707014714 1.0422e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1342  
   data-arc span      14587 days (39.94 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54369  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:39  

Additional Information
 Earth MOID = 1.03627 au 
 Jupiter MOID = 2.33613 au 
 T_jup = 3.513 
[ 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 15.12   n/a MPCxxxxx  

30748 (1981 ES25)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 ES25 = 1992 ES11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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