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

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2453384.5 (2005-Jan-14.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1529347923467732 0.00018011  
q 33.31868501554025 0.010237 au
tp 2426543.637321742957
(1931-Jul-21.13732174)
27.331 TDB
node 286.8071125255245 0.0069263 deg
peri 265.8107008446533 0.12804 deg
i 3.668606006743639 0.00080777 deg
  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
 Jupiter MOID = 28.5308 au 
 T_jup = 5.587 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.244106787501895E-8 -3.197612907630253E-7 .004013517559648166 2.976751461747304E-8 1.490784080755832E-5 3.582997003241179E-9
q -3.197612907630253E-7 .0001047900746815187 .1196812075691311 -4.233472709435392E-7 .0008348416158257432 1.845621980391457E-8
tp .004013517559648166 .1196812075691311 746.9667224424425 .003495107075808805 3.385806185202126 .0005285405425813921
node 2.976751461747304E-8 -4.233472709435392E-7 .003495107075808805 4.797358118760094E-5 -3.536817998168833E-5 5.546124616973789E-6
peri 1.490784080755832E-5 .0008348416158257432 3.385806185202126 -3.536817998168833E-5 .01639333001896209 -3.362071970416778E-6
i 3.582997003241179E-9 1.845621980391457E-8 .0005285405425813921 5.546124616973789E-6 -3.362071970416778E-6 6.524994207816506E-7

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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