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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06748306088053994 3.9727e-08  
a 2.590339686888797 1.3339e-08 au
q 2.415535636097202 1.0118e-07 au
i 10.3988325698615 3.8717e-06 deg
node 109.7787247791858 2.276e-05 deg
peri 108.5039958000032 3.7343e-05 deg
M 267.6583181719406 3.1328e-05 deg
tp 2459787.096893967378
(2022-Jul-26.59689397)
0.00013395 TDB
period 1522.767173442665
4.17
1.1762e-05
3.22e-08
d
yr
n .2364117156440362 1.8261e-09 deg/d
Q 2.765143737680392 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-Apr-13 09:45:57  

Additional Information
 Earth MOID = 1.42988 au 
 Jupiter MOID = 2.27456 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457457.5 (2016-Mar-10.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06741924968823262 3.9832e-08  
q 2.415458995747175 1.0136e-07 au
tp 2456746.563058848333
(2014-Mar-30.06305885)
0.00012408 TDB
node 109.8261750385296 2.2785e-05 deg
peri 109.4977764956831 3.7304e-05 deg
i 10.39348438569878 3.8695e-06 deg
  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-Apr-13 09:45:57  

Additional Information
 Jupiter MOID = 2.27456 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.586594914186944E-15 -4.00839533242452E-15 3.126067551482445E-13 -1.432610121065564E-14 7.05472019572995E-14 -2.53202157868698E-15
q -4.00839533242452E-15 1.027468032104427E-14 -3.208208766069444E-13 3.798013132777056E-14 -5.662753795288321E-14 6.581177799850849E-15
tp 3.126067551482445E-13 -3.208208766069444E-13 1.539470246718044E-8 2.102542145233859E-11 3.682901713398351E-9 -7.421770015575849E-12
node -1.432610121065564E-14 3.798013132777056E-14 2.102542145233859E-11 5.191787906656382E-10 -5.050530766359994E-10 -6.379869273540537E-12
peri 7.05472019572995E-14 -5.662753795288321E-14 3.682901713398351E-9 -5.050530766359994E-10 1.391554534415172E-9 4.506306994043505E-12
i -2.53202157868698E-15 6.581177799850849E-15 -7.421770015575849E-12 -6.379869273540537E-12 4.506306994043505E-12 1.497320833265334E-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 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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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