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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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09163361116229711 6.0988e-08  
a 3.345619671084245 2.7317e-08 au
q 3.039048459047179 2.0858e-07 au
i 12.04047762492729 5.9293e-06 deg
node 356.7743398630025 2.0858e-05 deg
peri 30.61415434224258 3.9882e-05 deg
M 2.52925629354583 2.9858e-05 deg
tp 2459184.796241100614
(2020-Dec-01.29624110)		 0.00018543 TDB
period 2235.184001797394
6.12		 2.7375e-05
7.495e-08		 d
yr
n .1610605658015227 1.9726e-09 deg/d
Q 3.652190883121311 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54214  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:16:23  

Additional Information
 Earth MOID = 2.04753 au 
 Jupiter MOID = 1.85106 au 
 T_jup = 3.117 
[ show covariance matrix ]

[ 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

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