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100293 (1995 DY7)
Classification: Main-belt Asteroid          SPK-ID: 2100293
[ 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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1991735383225858 3.4595e-08  
a 2.640341852679036 1.4582e-08 au
q 2.114455623499741 9.1203e-08 au
i 18.01279972182354 4.5717e-06 deg
node 163.7266802424652 1.4145e-05 deg
peri 156.0353845541605 1.8813e-05 deg
M 224.0722136965488 1.4921e-05 deg
tp 2459792.190246023679
(2022-Jul-31.69024602)		 6.7604e-05 TDB
period 1567.07097467912
4.29		 1.2982e-05
3.554e-08		 d
yr
n .2297279483934767 1.9031e-09 deg/d
Q 3.166228081858331 1.7486e-08 au
   Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      9516 days (26.05 yr)  
   first obs. used      1995-02-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54426  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:31  

Additional Information
 Earth MOID = 1.11179 au 
 Jupiter MOID = 2.26053 au 
 T_jup = 3.298 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457286.5 (2015-Sep-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2006415863036924 3.4774e-08  
q 2.109736269086383 9.1765e-08 au
tp 2456655.272943755872
(2013-Dec-28.77294376)		 5.5953e-05 TDB
node 163.7821376467184 1.4133e-05 deg
peri 155.5401874074936 1.8693e-05 deg
i 18.02351582719093 4.573e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      587  
   data-arc span      9516 days (26.05 yr)  
   first obs. used      1995-02-24  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54426  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:31:31  

Additional Information
 Jupiter MOID = 2.26053 au 
 T_jup = 3.298 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209264102757036E-15 -3.165603172825019E-15 3.663115201460541E-13 1.037958469210896E-14 7.344071977392674E-14 4.064629921093531E-16
q -3.165603172825019E-15 8.420756615726554E-15 -8.147206941899598E-13 -2.621538640828151E-14 -1.504335028390436E-13 -5.675175137155941E-16
tp 3.663115201460541E-13 -8.147206941899598E-13 3.130707261346256E-9 1.917483440848288E-11 7.04666775597259E-10 5.36633427347677E-12
node 1.037958469210896E-14 -2.621538640828151E-14 1.917483440848288E-11 1.997367447258792E-10 -1.853510204612909E-10 1.244761346367246E-11
peri 7.344071977392674E-14 -1.504335028390436E-13 7.04666775597259E-10 -1.853510204612909E-10 3.494225480765761E-10 -1.067751424851942E-11
i 4.064629921093531E-16 -5.675175137155941E-16 5.36633427347677E-12 1.244761346367246E-11 -1.067751424851942E-11 2.091278312017807E-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 15.5   n/a MPO453457  

100293 (1995 DY7)          Discovered 1995-Feb-24 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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