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18630 (1998 DT34)
Classification: Main-belt Asteroid          SPK-ID: 2018630
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1835229963552988 3.2025e-08  
a 2.221717119474647 6.4559e-09 au
q 1.813980936654796 7.0169e-08 au
i 5.363517842758013 4.2068e-06 deg
node 15.98081142372247 3.3228e-05 deg
peri 302.644000108031 3.534e-05 deg
M 180.0460704478456 1.3745e-05 deg
tp 2459805.130989967039
(2022-Aug-13.63098997)
4.7209e-05 TDB
period 1209.571566066021
3.31
5.2722e-06
1.443e-08
d
yr
n .2976260438816816 1.2973e-09 deg/d
Q 2.629453302294497 7.6407e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1592  
   data-arc span      24080 days (65.93 yr)  
   first obs. used      1955-04-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5015  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:45:50  

Additional Information
 Earth MOID = .806141 au 
 Jupiter MOID = 2.68256 au 
 T_jup = 3.621 
[ 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 15.22   n/a MPCxxxxx  

18630 (1998 DT34)          Discovered 1998-Feb-27 by Elst, E. W. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 DT34 = 1989 SQ8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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