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154865 Stefanheutz (2004 RO84)
Classification: Main-belt Asteroid          SPK-ID: 2154865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1366232599379422 5.0981e-08  
a 2.846511462788926 2.0063e-08 au
q 2.457611787291982 1.4242e-07 au
i 15.15487487129643 5.2777e-06 deg
node 199.8205371296691 1.9803e-05 deg
peri 192.8202089543519 2.727e-05 deg
M 77.00552022316947 1.906e-05 deg
tp 2458625.278953121515
(2019-May-21.77895312)
9.1594e-05 TDB
period 1754.154461716265
4.80
1.8546e-05
5.078e-08
d
yr
n .2052270811133565 2.1697e-09 deg/d
Q 3.235411138285869 2.2804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7471 days (20.45 yr)  
   first obs. used      1999-10-09  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:15:13  

Additional Information
 Earth MOID = 1.46473 au 
 Jupiter MOID = 2.21651 au 
 T_jup = 3.242 
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Orbital Elements at Epoch 2457271.5 (2015-Sep-06.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338753436538618 5.0386e-08  
q 2.466953302559141 1.3986e-07 au
tp 2456865.937676173277
(2014-Jul-27.43767617)
9.1117e-05 TDB
node 199.8890014082585 1.9841e-05 deg
peri 192.0368032046647 2.7725e-05 deg
i 15.12884172187517 5.2686e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      489  
   data-arc span      7471 days (20.45 yr)  
   first obs. used      1999-10-09  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 13:15:13  

Additional Information
 Jupiter MOID = 2.21651 au 
 T_jup = 3.242 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.538787764802387E-15 -6.994544909314171E-15 1.267650484956254E-12 1.24736412050741E-14 2.238488271778062E-13 -8.997061199227686E-15
q -6.994544909314171E-15 1.956097770053358E-14 -3.399420196865754E-12 -3.204317412837112E-14 -5.863156254262423E-13 2.56794930743388E-14
tp 1.267650484956254E-12 -3.399420196865754E-12 8.302378291313201E-9 2.710042297049229E-11 1.793657283497323E-9 -7.989987241044698E-12
node 1.24736412050741E-14 -3.204317412837112E-14 2.710042297049229E-11 3.936786267552103E-10 -3.742914340779468E-10 2.797494953872026E-11
peri 2.238488271778062E-13 -5.863156254262423E-13 1.793657283497323E-9 -3.742914340779468E-10 7.686630608099999E-10 -2.874360091640751E-11
i -8.997061199227686E-15 2.56794930743388E-14 -7.989987241044698E-12 2.797494953872026E-11 -2.874360091640751E-11 2.775764415930022E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO412914  
diameter diameter 3.494 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.132   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154865 Stefanheutz           Discovered 2004 Sept. 9 by W. Ries at Altschwendt.
Stefan Heutz (b. 1980) is a German jurist and amateur astrophotographer. His pictures and articles are published in books, magazines and in the internet. The naming of this minor planet is in appreciation of his efforts to encourage and promote astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070730/MPCPages.arcLast Updated: 2007-08-07

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