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JPL Small-Body Database Browser
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9253 Oberth (1171 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2009253
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1837347678366736 3.9416e-08  
a 2.393977024474856 9.3015e-09 au
q 1.954120211676638 9.3367e-08 au
i 7.288123205884912 4.6403e-06 deg
node 199.7307836801168 2.8796e-05 deg
peri 138.7314227926932 3.1615e-05 deg
M 208.2661899717496 1.6185e-05 deg
tp 2459170.740759270369
(2020-Nov-17.24075927)
6.2684e-05 TDB
period 1352.939554467865
3.70
7.885e-06
2.159e-08
d
yr
n .266087275526211 1.5508e-09 deg/d
Q 2.833833837273075 1.101e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1601  
   data-arc span      17578 days (48.13 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51593  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:40:54  

Additional Information
 Earth MOID = .951816 au 
 Jupiter MOID = 2.59097 au 
 T_jup = 3.496 
[ 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 14.5   n/a MPO435787  

9253 Oberth           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Named in memory of the German pioneer of space flight Hermann J. Oberth (1894-1989). In his 1923 work entitled Die Rakete zu den Planetenräumen, Oberth gave a thorough discussion of many phases of rocket travel, including the launching of payloads into earth orbit and the abnormal effects of pressure on the human body.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1171 T-1 = 1987 UB = 1989 EE12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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