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109581 (2001 QO274)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109581
[ 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09163361113860065 6.0988e-08  
a 3.345619673797305 2.7317e-08 au
q 3.039048461590911 2.0858e-07 au
i 12.04047759653315 5.9293e-06 deg
node 356.7743398336897 2.0858e-05 deg
peri 30.61415380332741 3.9882e-05 deg
M 2.529256772469218 2.9858e-05 deg
tp 2459184.796238107951
(2020-Dec-01.29623811)		 0.00018543 TDB
period 2235.184004516257
6.12		 2.7375e-05
7.495e-08		 d
yr
n .1610605656056097 1.9726e-09 deg/d
Q 3.652190886003699 2.982e-08 au
   Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      7109 days (19.46 yr)  
   first obs. used      2001-07-26  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54215  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:52:38  

Additional Information
 Earth MOID = 2.04753 au 
 Jupiter MOID = 1.85106 au 
 T_jup = 3.117 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457554.5 (2016-Jun-15.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09395486077527805 6.4667e-08  
q 3.031297995099875 2.2231e-07 au
tp 2456917.690429492761
(2014-Sep-17.19042949)		 0.0001778 TDB
node 357.2091912249659 2.0666e-05 deg
peri 25.9004795403418 3.7943e-05 deg
i 12.10891017051608 5.9485e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      868  
   data-arc span      7109 days (19.46 yr)  
   first obs. used      2001-07-26  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54215  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:52:38  

Additional Information
 Jupiter MOID = 1.85106 au 
 T_jup = 3.117 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.181833198311038E-15 -1.42950363300997E-14 -4.494730827769447E-12 2.986794752028656E-14 -9.468637897984605E-13 -4.958290569602525E-15
q -1.42950363300997E-14 4.942204394348412E-14 1.398857884555833E-11 -1.104521054361289E-13 3.037912218626029E-12 2.162221660316385E-14
tp -4.494730827769447E-12 1.398857884555833E-11 3.161347033240957E-8 -6.022917386279972E-11 5.659376065477081E-9 -4.442064082730368E-12
node 2.986794752028656E-14 -1.104521054361289E-13 -6.022917386279972E-11 4.270834338068707E-10 -4.283404608710942E-10 2.415690059935958E-11
peri -9.468637897984605E-13 3.037912218626029E-12 5.659376065477081E-9 -4.283404608710942E-10 1.439670684849467E-9 -2.42658627000702E-11
i -4.958290569602525E-15 2.162221660316385E-14 -4.442064082730368E-12 2.415690059935958E-11 -2.42658627000702E-11 3.538478112964811E-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 14.20   n/a E2021B55  
diameter diameter 8.549 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109581 (2001 QO274)          Discovered 2001-Aug-19 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 2001 QO274 = 2002 TQ294 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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