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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 ]

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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06748306088304165 3.9727e-08  
a 2.590339686899152 1.3339e-08 au
q 2.415535636100377 1.0118e-07 au
i 10.39883256985535 3.8717e-06 deg
node 109.7787247791668 2.276e-05 deg
peri 108.5039957986662 3.7343e-05 deg
M 267.6583181735782 3.1328e-05 deg
tp 2459787.096893962793
(2022-Jul-26.59689396)
0.00013395 TDB
period 1522.767173451796
4.17
1.1762e-05
3.22e-08
d
yr
n .2364117156426186 1.8261e-09 deg/d
Q 2.765143737697926 1.4239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      10165 days (27.83 yr)  
   first obs. used      1993-03-22  
   last obs. used      2021-01-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54201  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 16:51:13  

Additional Information
 Earth MOID = 1.42988 au 
 Jupiter MOID = 2.27456 au 
 T_jup = 3.394 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.04   n/a MPCxxxxx  
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
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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