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46025 (2001 DQ18)
Classification: Main-belt Asteroid          SPK-ID: 2046025
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06784679959573583 5.0825e-08  
a 2.589389416901267 1.5307e-08 au
q 2.413707632057447 1.259e-07 au
i 10.39939932661127 4.0538e-06 deg
node 109.7774109821553 2.6049e-05 deg
peri 108.6438633908383 4.2095e-05 deg
M 173.8858311593013 3.2837e-05 deg
tp 2458265.383493416491
(2018-May-26.88349342)
0.00013773 TDB
period 1521.929306175718
4.17
1.3495e-05
3.695e-08
d
yr
n .2365418673122228 2.0974e-09 deg/d
Q 2.765071201745086 1.6345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      9740 days (26.67 yr)  
   first obs. used      1993-03-22  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:51:17  

Additional Information
 Earth MOID = 1.42758 au 
 Jupiter MOID = 2.27693 au 
 T_jup = 3.394 
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Orbital Elements at Epoch 2457123.5 (2015-Apr-11.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06722498999783963 5.0732e-08  
q 2.416177822542085 1.2555e-07 au
tp 2456746.267123894991
(2014-Mar-29.76712390)
0.00013861 TDB
node 109.8330300165556 2.6071e-05 deg
peri 109.4584449135482 4.2482e-05 deg
i 10.39403393848628 4.0517e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      9740 days (26.67 yr)  
   first obs. used      1993-03-22  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56057  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 03:51:17  

Additional Information
 Jupiter MOID = 2.27693 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.573747069534867E-15 -6.336259505913585E-15 -1.61401394121813E-12 -4.301535099777885E-14 -4.181308753728259E-13 -3.923954151863934E-15
q -6.336259505913585E-15 1.57637832758935E-14 4.220892300192691E-12 1.080387623862668E-13 1.093009485264655E-12 1.008787205195512E-14
tp -1.61401394121813E-12 4.220892300192691E-12 1.921295169291024E-8 4.870139627503073E-11 4.677117786241129E-9 -7.576701264211217E-12
node -4.301535099777885E-14 1.080387623862668E-13 4.870139627503073E-11 6.797130538433732E-10 -6.550816851816894E-10 8.623231076269433E-12
peri -4.181308753728259E-13 1.093009485264655E-12 4.677117786241129E-9 -6.550816851816894E-10 1.804740889638143E-9 -1.024773575328969E-11
i -3.923954151863934E-15 1.008787205195512E-14 -7.576701264211217E-12 8.623231076269433E-12 -1.024773575328969E-11 1.641627722112768E-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 14.9   n/a MPO502463  
diameter diameter 2.493 km 0.683 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.375   0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46025 (2001 DQ18)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

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