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72523 (2001 DC91)
Classification: Main-belt Asteroid          SPK-ID: 2072523
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | 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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1033005121009398 4.277e-08  
a 2.778964943171339 1.5426e-08 au
q 2.49189644143118 1.1606e-07 au
i 11.97882890451997 3.6842e-06 deg
node 258.0511295899165 2.3007e-05 deg
peri 295.8978024467686 3.0454e-05 deg
M 96.60013993922885 1.9056e-05 deg
tp 2458942.455641546247
(2020-Apr-02.95564155)
8.9839e-05 TDB
period 1692.088325608859
4.63
1.4089e-05
3.857e-08
d
yr
n .2127548512400866 1.7715e-09 deg/d
Q 3.066033444911497 1.7019e-08 au
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      8380 days (22.94 yr)  
   first obs. used      1998-08-27  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:43:19  

Additional Information
 Earth MOID = 1.51621 au 
 Jupiter MOID = 2.02855 au 
 T_jup = 3.295 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457423.5 (2016-Feb-05.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103828920716245 4.2846e-08  
q 2.488226050539229 1.166e-07 au
tp 2457247.785686947355
(2015-Aug-13.28568695)
9.0997e-05 TDB
node 258.0887594441386 2.2992e-05 deg
peri 294.8930332867707 3.0349e-05 deg
i 11.98606487307227 3.686e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      8380 days (22.94 yr)  
   first obs. used      1998-08-27  
   last obs. used      2021-08-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:43:19  

Additional Information
 Jupiter MOID = 2.02855 au 
 T_jup = 3.295 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.835756577135827E-15 -4.962083228444442E-15 -1.11822235599753E-12 -9.402931622329469E-15 -2.179697698434561E-13 -2.221118113817603E-15
q -4.962083228444442E-15 1.359541257684429E-14 2.829002414961101E-12 2.699108061064593E-14 5.493047273538355E-13 6.373456340394267E-15
tp -1.11822235599753E-12 2.829002414961101E-12 8.280385462778413E-9 -6.81937598685865E-12 1.83407669036397E-9 2.843393864201992E-12
node -9.402931622329469E-15 2.699108061064593E-14 -6.81937598685865E-12 5.286530023359856E-10 -5.18460647235833E-10 5.140151888726523E-12
peri -2.179697698434561E-13 5.493047273538355E-13 1.83407669036397E-9 -5.18460647235833E-10 9.210399286340384E-10 -4.391071898741727E-12
i -2.221118113817603E-15 6.373456340394267E-15 2.843393864201992E-12 5.140151888726523E-12 -4.391071898741727E-12 1.358670337479588E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.61   n/a MPCxxxxx  
diameter diameter 3.599 km 0.283 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.260   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72523 (2001 DC91)          Discovered 2001-Feb-20 by NEAT at Haleakala
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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