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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .163244639955068 4.1324e-08  
a 2.784939242744418 1.5017e-08 au
q 2.330312838765866 1.1759e-07 au
i 8.41427415282182 4.8317e-06 deg
node 291.4807128399459 2.7003e-05 deg
peri 165.5176073332158 3.0983e-05 deg
M 265.3250734497087 1.7012e-05 deg
tp 2459646.931150154682
(2022-Mar-08.43115015)
8.2101e-05 TDB
period 1697.547808186717
4.65
1.373e-05
3.759e-08
d
yr
n .2120706104793266 1.7153e-09 deg/d
Q 3.239565646722971 1.7468e-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 = 1.34801 au 
 Jupiter MOID = 1.93184 au 
 T_jup = 3.296 
[ show covariance matrix ]

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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