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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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06668118609473812 3.6786e-08  
a 2.623861811525274 1.7244e-08 au
q 2.448899593784081 9.6721e-08 au
i 14.63718070960764 4.3743e-06 deg
node 129.0334856501967 1.4996e-05 deg
peri 124.4732913702521 4.1579e-05 deg
M 227.6259936145714 4.1929e-05 deg
tp 2459771.334321768143
(2022-Jul-10.83432177)
0.00018402 TDB
period 1552.4222726793
4.25
1.5304e-05
4.19e-08
d
yr
n .2318956680379764 2.2861e-09 deg/d
Q 2.798824029266468 1.8394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      2000-02-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54576  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:49:27  

Additional Information
 Earth MOID = 1.45868 au 
 Jupiter MOID = 2.37432 au 
 T_jup = 3.354 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06778588073487241 3.6744e-08  
q 2.44470536938107 9.6588e-08 au
tp 2458221.274220344946
(2018-Apr-12.77422035)
0.00017297 TDB
node 129.1046720020528 1.4997e-05 deg
peri 124.9643851857035 4.1057e-05 deg
i 14.63914524375423 4.3749e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      7687 days (21.05 yr)  
   first obs. used      2000-02-03  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54576  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:49:27  

Additional Information
 Jupiter MOID = 2.37432 au 
 T_jup = 3.354 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.350092179230253E-15 -3.500279147029263E-15 1.603822232695467E-12 -2.066432864135196E-15 3.303337128867259E-13 3.551845715080911E-15
q -3.500279147029263E-15 9.32920283908633E-15 -2.776637823523531E-12 4.42748467712458E-15 -5.717509395161656E-13 -8.826791139212951E-15
tp 1.603822232695467E-12 -2.776637823523531E-12 2.991998585158596E-8 -2.679201307887771E-11 6.619011292393699E-9 -1.029874235345201E-11
node -2.066432864135196E-15 4.42748467712458E-15 -2.679201307887771E-11 2.249166936659055E-10 -2.231862372550466E-10 1.347467589768359E-12
peri 3.303337128867259E-13 -5.717509395161656E-13 6.619011292393699E-9 -2.231862372550466E-10 1.685691392493089E-9 -3.796249296929367E-12
i 3.551845715080911E-15 -8.826791139212951E-15 -1.029874235345201E-11 1.347467589768359E-12 -3.796249296929367E-12 1.913972023704117E-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 15.66   n/a MPCxxxxx  
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1963-Jul-19 02:09 00:01 Eunom 0.0268210804337351 0.0268137537462067 0.0268284127409839 9.63301826725255 9.6330182129206 2438229.589816333 1.16414222606543 719.21886454597 56.1962960614074 -59.7627352420917 61735.9808173594 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 15:49:29 2021-Apr-13 15:49
2023-Apr-05 01:35 < 00:01 Amphi 0.0365968667250801 0.0365909792762653 0.0366027543121597 6.84951854809075 6.84951852515732 2460039.566086396 0.818197581074765 314.891410173779 52.3545628528139 21.5360761191434 41645.5910526677 T 26 CATAB v2.0f-lin.ifort 2021-Apr-13 15:49:29 2021-Apr-13 15:49

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