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43735 (1981 DQ1)
Classification: Main-belt Asteroid          SPK-ID: 2043735
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .163338958624379 4.136e-08  
a 2.783983034077772 1.4813e-08 au
q 2.32925014446357 1.1773e-07 au
i 8.413956649202278 4.8315e-06 deg
node 291.4749352365185 2.701e-05 deg
peri 165.6510904609021 3.099e-05 deg
M 306.7872311394758 1.7193e-05 deg
tp 2459647.290834208436
(2022-Mar-08.79083421)
8.2079e-05 TDB
period 1696.673603880336
4.65
1.3541e-05
3.707e-08
d
yr
n .212179879015428 1.6934e-09 deg/d
Q 3.238715923691974 1.7232e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1369  
   data-arc span      15529 days (42.52 yr)  
   first obs. used      1978-07-09  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48543  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:01  

Additional Information
 Earth MOID = 1.34731 au 
 Jupiter MOID = 1.93253 au 
 T_jup = 3.297 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457496.5 (2016-Apr-18.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1626404832185182 4.0266e-08  
q 2.333468268749843 1.143e-07 au
tp 2457938.950616704529
(2017-Jul-04.45061670)
7.6044e-05 TDB
node 291.625525296475 2.7113e-05 deg
peri 163.800980820476 3.1123e-05 deg
i 8.392904507434217 4.8139e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1369  
   data-arc span      15529 days (42.52 yr)  
   first obs. used      1978-07-09  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48543  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:22:01  

Additional Information
 Jupiter MOID = 1.93253 au 
 T_jup = 3.297 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.621347544835312E-15 -4.574691509970125E-15 7.555188272945504E-13 -4.550405101595626E-15 2.310953321876598E-13 7.956986689128282E-16
q -4.574691509970125E-15 1.3064926988193E-14 -1.664691560131052E-12 1.330670574378408E-14 -5.722745088209198E-13 -1.44412697964738E-15
tp 7.555188272945504E-13 -1.664691560131052E-12 5.782719677384421E-9 -5.713847252708679E-12 1.169066302375117E-9 6.61448249515022E-12
node -4.550405101595626E-15 1.330670574378408E-14 -5.713847252708679E-12 7.351025999023695E-10 -7.284678486734825E-10 5.561169048539675E-11
peri 2.310953321876598E-13 -5.722745088209198E-13 1.169066302375117E-9 -7.284678486734825E-10 9.686299512703118E-10 -5.378329770944012E-11
i 7.956986689128282E-16 -1.44412697964738E-15 6.61448249515022E-12 5.561169048539675E-11 -5.378329770944012E-11 2.317382278802185E-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 14.03   n/a E2021B10  
diameter diameter 11.583 km 3.745 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.021   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

43735 (1981 DQ1)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 DQ1 = 1997 TO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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