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46045 (2001 DU68)
Classification: Outer Main-belt Asteroid          SPK-ID: 2046045
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0907670381601694 3.8864e-08  
a 3.202489242444313 2.3239e-08 au
q 2.911808779167838 1.2394e-07 au
i 7.488118478506 4.8429e-06 deg
node 173.9562096014737 3.148e-05 deg
peri 319.0663031684942 4.1085e-05 deg
M 216.7797814954462 2.6771e-05 deg
tp 2460229.282858679783
(2023-Oct-11.78285868)
0.00015695 TDB
period 2093.292638812651
5.73
2.2785e-05
6.238e-08
d
yr
n .1719778655526146 1.872e-09 deg/d
Q 3.493169705720788 2.5349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8308 days (22.75 yr)  
   first obs. used      1998-09-12  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:37  

Additional Information
 Earth MOID = 1.93135 au 
 Jupiter MOID = 1.54742 au 
 T_jup = 3.174 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456926.5 (2014-Sep-26.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08889181442169107 3.767e-08  
q 2.917932510581167 1.1924e-07 au
tp 2456012.413411535745
(2012-Mar-25.91341154)
0.00015963 TDB
node 174.5872265210692 3.1756e-05 deg
peri 313.9095823914581 4.1983e-05 deg
i 7.447016222164079 4.8285e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1018  
   data-arc span      8308 days (22.75 yr)  
   first obs. used      1998-09-12  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51448  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:34:37  

Additional Information
 Jupiter MOID = 1.54742 au 
 T_jup = 3.174 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.419018002399307E-15 -4.43211005211025E-15 1.029871465479672E-12 2.352049603021831E-15 1.455471920633306E-13 -1.444341509632931E-16
q -4.43211005211025E-15 1.421777781915911E-14 -3.188999629885922E-12 -4.452479576043376E-15 -4.266582177282172E-13 6.404340205472346E-16
tp 1.029871465479672E-12 -3.188999629885922E-12 2.54805124605492E-8 2.033471474270312E-11 4.401012564710193E-9 -8.447666089991782E-12
node 2.352049603021831E-15 -4.452479576043376E-15 2.033471474270312E-11 1.008439419663386E-9 -9.958243904305637E-10 2.514916392531254E-11
peri 1.455471920633306E-13 -4.266582177282172E-13 4.401012564710193E-9 -9.958243904305637E-10 1.762559477598589E-9 -2.638829131983963E-11
i -1.444341509632931E-16 6.404340205472346E-16 -8.447666089991782E-12 2.514916392531254E-11 -2.638829131983963E-11 2.331420242049288E-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 14.16   n/a E2021B10  
diameter diameter 9.253 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.32 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.057   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46045 (2001 DU68)          Discovered 2001-Feb-19 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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