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103980 (2000 DT85)
Classification: Main-belt Asteroid          SPK-ID: 2103980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06668118277558858 3.7737e-08  
a 2.623861812623513 1.7556e-08 au
q 2.448899603518077 9.8574e-08 au
i 14.63718070210908 4.3747e-06 deg
node 129.0334853160288 1.5374e-05 deg
peri 124.4732922242782 4.171e-05 deg
M 227.6259933824878 4.2001e-05 deg
tp 2459771.334323127344
(2022-Jul-10.83432313)
0.00018439 TDB
period 1552.422273653969
4.25
1.558e-05
4.266e-08
d
yr
n .2318956678923837 2.3273e-09 deg/d
Q 2.798824021728949 1.8726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      2000-02-03  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55159  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:36:34  

Additional Information
 Earth MOID = 1.45868 au 
 Jupiter MOID = 2.37432 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457494.5 (2016-Apr-16.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06776904432295024 3.769e-08  
q 2.444777594944614 9.8426e-08 au
tp 2458221.343887165631
(2018-Apr-12.84388717)
0.00017322 TDB
node 129.1049139923817 1.5375e-05 deg
peri 124.9754218635108 4.1198e-05 deg
i 14.63907480113935 4.3753e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      7655 days (20.96 yr)  
   first obs. used      2000-02-03  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55159  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:36:34  

Additional Information
 Jupiter MOID = 2.37432 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.420546287966016E-15 -3.659255399348886E-15 1.675593235395782E-12 -1.74545642322871E-15 3.373194888005933E-13 3.877638366996055E-15
q -3.659255399348886E-15 9.687691222203448E-15 -2.940148249250414E-12 3.670980449799545E-15 -5.878296063794995E-13 -9.571267259944241E-15
tp 1.675593235395782E-12 -2.940148249250414E-12 3.000498678992647E-8 -2.539725099782635E-11 6.62798120424936E-9 -9.964164574240872E-12
node -1.74545642322871E-15 3.670980449799545E-15 -2.539725099782635E-11 2.363975619592622E-10 -2.339766039866768E-10 1.512027864826023E-12
peri 3.373194888005933E-13 -5.878296063794995E-13 6.62798120424936E-9 -2.339766039866768E-10 1.697277614720945E-9 -3.91948654533045E-12
i 3.877638366996055E-15 -9.571267259944241E-15 -9.964164574240872E-12 1.512027864826023E-12 -3.91948654533045E-12 1.914364443304664E-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 15.6   n/a MPO453493  
rotation period rot_per 4.310 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

103980 (2000 DT85)          Discovered 2000-Feb-29 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2000 DT85 = 2002 TC160 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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