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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 
[ 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 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

[ 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 25 CATAB v2.0f-lin.ifort 2021-Feb-24 08:36:35 2021-Feb-24 08:36
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 25 CATAB v2.0f-lin.ifort 2021-Feb-24 08:36:35 2021-Feb-24 08:36

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