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JPL Small-Body Database Browser
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91554 (1999 RZ215)
Classification: TransNeptunian Object          SPK-ID: 2091554
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6983756623023704 0.00020746  
a 102.489026384026 0.074483 au
q 30.91318470435675 0.0013159 au
i 25.49004549236581 0.00045258 deg
node 341.6190440869626 0.00028937 deg
peri 335.467543991515 0.0072621 deg
M 7.140928985804065 0.0080231 deg
tp 2451083.116757588172
(1998-Sep-26.61675759)
0.95546 TDB
period 378978.4176047978
1037.59
413.13
1.131
d
yr
n .0009499221677985139 1.0355e-06 deg/d
Q 174.0648680636953 0.1265 au
  Orbit Determination Parameters
   # obs. used (total)      26  
   data-arc span      3671 days (10.05 yr)  
   first obs. used      1999-09-08  
   last obs. used      2009-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .18752  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 14:16:11  

Additional Information
 Earth MOID = 29.9161 au 
 Jupiter MOID = 25.9394 au 
 T_jup = 5.785 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.8   n/a MPO366278  

91554 (1999 RZ215)          Discovered 1999-Sep-08 by Luu, J. X., Trujillo, C. A., Jewitt, D. C. at Mauna Kea
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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