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90756 (1993 RH9)
Classification: Main-belt Asteroid          SPK-ID: 2090756
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .183020120478092 2.9607e-08  
a 2.408315462554858 8.3227e-09 au
q 1.967545276448816 7.1495e-08 au
i 1.257166870364209 3.6698e-06 deg
node 274.2296414091401 0.00019556 deg
peri 168.1587781702101 0.00019597 deg
M 86.4030356614191 1.355e-05 deg
tp 2459068.861455219133
(2020-Aug-07.36145522)
5.0739e-05 TDB
period 1365.112640061784
3.74
7.0763e-06
1.937e-08
d
yr
n .2637145019649856 1.367e-09 deg/d
Q 2.8490856486609 9.8459e-09 au
  Orbit Determination Parameters
   # obs. used (total)      745  
   data-arc span      10098 days (27.65 yr)  
   first obs. used      1993-09-14  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51376  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:53:04  

Additional Information
 Earth MOID = .983456 au 
 Jupiter MOID = 2.38133 au 
 T_jup = 3.498 
[ 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 16.25   n/a MPCxxxxx  

90756 (1993 RH9)          Discovered 1993-Sep-14 by Debehogne, H., Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1993 RH9 = 1997 UW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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