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385445 (2003 QH91)
Classification: TransNeptunian Object          SPK-ID: 2385445
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1446390454311816 0.00019207  
a 39.71574912050142 0.013693 au
q 33.97130107912781 0.010127 au
i 3.652313078530065 0.00080208 deg
node 286.5907181804221 0.0069505 deg
peri 268.8260064902878 0.13394 deg
M 128.5624114045199 0.17754 deg
tp 2426748.688532986300
(1932-Feb-11.18853299)
29.217 TDB
period 91420.28373397268
250.30
47.278
0.1294
d
yr
n .003937856953579115 2.0365e-06 deg/d
Q 45.46019716187504 0.015673 au
  Orbit Determination Parameters
   # obs. used (total)      20  
   data-arc span      3697 days (10.12 yr)  
   first obs. used      2003-08-24  
   last obs. used      2013-10-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      4  
   norm. resid. RMS      .26059  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:05:25  

Additional Information
 Earth MOID = 32.9733 au 
 Jupiter MOID = 28.5308 au 
 T_jup = 5.587 
[ 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 6.8   n/a MPO102158  

385445 (2003 QH91)          Discovered 2003-Aug-24 by Buie, M. W. at Cerro Tololo
Reference: Last Updated: 2014-02-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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