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17371 (1981 DT)
Classification: Main-belt Asteroid          SPK-ID: 2017371
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0520284951830873 5.6331e-08  
a 3.106777127828973 2.0159e-08 au
q 2.945136188998798 1.7079e-07 au
i 14.82692162321887 6.1581e-06 deg
node 328.6919335126357 1.6634e-05 deg
peri 190.7220035217528 4.6016e-05 deg
M 123.0121669711269 4.1848e-05 deg
tp 2458517.046229201385
(2019-Feb-02.54622920)
0.00023264 TDB
period 2000.154647671983
5.48
1.9467e-05
5.33e-08
d
yr
n .1799860827856539 1.7518e-09 deg/d
Q 3.268418066659149 2.1208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1302  
   data-arc span      14403 days (39.43 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:04  

Additional Information
 Earth MOID = 1.95585 au 
 Jupiter MOID = 1.74409 au 
 T_jup = 3.167 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456392.5 (2013-Apr-10.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05299341028949899 5.6214e-08  
q 2.937749685507878 1.714e-07 au
tp 2456502.061241101963
(2013-Jul-28.56124110)
0.0002289 TDB
node 328.7667714344682 1.6658e-05 deg
peri 187.1246193581639 4.5288e-05 deg
i 14.82163643175535 6.1561e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1302  
   data-arc span      14403 days (39.43 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-07-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48698  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:04  

Additional Information
 Jupiter MOID = 1.74409 au 
 T_jup = 3.167 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.159975157003931E-15 -9.575305524752246E-15 7.348554843472033E-14 -1.089903616309283E-14 7.550622076765794E-14 -4.014388974692542E-16
q -9.575305524752246E-15 2.93774796231928E-14 -5.751623671841101E-13 3.487407986941554E-14 -3.022659697431136E-13 3.85070864890311E-15
tp 7.348554843472033E-14 -5.751623671841101E-13 5.239705068132148E-8 9.71289639523583E-12 9.655847721207551E-9 2.877740398580853E-12
node -1.089903616309283E-14 3.487407986941554E-14 9.71289639523583E-12 2.774998969258206E-10 -2.658138928693411E-10 9.857412488096636E-12
peri 7.550622076765794E-14 -3.022659697431136E-13 9.655847721207551E-9 -2.658138928693411E-10 2.050975745871241E-9 -8.818908566602857E-12
i -4.014388974692542E-16 3.85070864890311E-15 2.877740398580853E-12 9.857412488096636E-12 -8.818908566602857E-12 3.789707114440593E-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 13.29   n/a MPCxxxxx  
diameter diameter 10.100 km 0.227 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.13834 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17371 (1981 DT)          Discovered 1981-Feb-28 by Bus, S. J. at Siding Spring
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1981 DT = 1997 CU15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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