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JPL Small-Body Database Browser
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173603 (2001 DF76)
Classification: Main-belt Asteroid          SPK-ID: 2173603
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287981944366636 4.903e-08  
a 2.264923379442648 1.106e-08 au
q 1.973205337633048 1.1238e-07 au
i 2.461157202365631 5.5401e-06 deg
node 152.6835871894437 0.00010683 deg
peri 358.3174429175298 0.00010861 deg
M 235.9127219128605 1.8743e-05 deg
tp 2459429.644406682395
(2021-Aug-03.14440668)
6.5555e-05 TDB
period 1245.02679716426
3.41
9.1192e-06
2.497e-08
d
yr
n .2891504028828579 2.1179e-09 deg/d
Q 2.556641421252247 1.2484e-08 au
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-09-05  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58121  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:10  

Additional Information
 Earth MOID = .983992 au 
 Jupiter MOID = 2.43505 au 
 T_jup = 3.605 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457012.5 (2014-Dec-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1281895602205007 4.9024e-08  
q 1.975012218924261 1.1235e-07 au
tp 2456938.254689478676
(2014-Oct-07.75468948)
6.3912e-05 TDB
node 152.7281797946961 0.00010688 deg
peri 358.1562021909463 0.00010868 deg
i 2.460295286314893 5.539e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      347  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-09-05  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58121  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:46:10  

Additional Information
 Jupiter MOID = 2.43505 au 
 T_jup = 3.605 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.403396910472231E-15 -5.487557183693139E-15 3.484689640302044E-13 -6.212677400288021E-15 6.616332019202329E-14 -1.271121010454527E-15
q -5.487557183693139E-15 1.262218171167649E-14 -8.046497465376883E-13 1.340857900545112E-14 -1.51046496312003E-13 2.90826321873637E-15
tp 3.484689640302044E-13 -8.046497465376883E-13 4.084778091060127E-9 6.71700706670655E-12 1.272664550925602E-9 -2.219665933021205E-12
node -6.212677400288021E-15 1.340857900545112E-14 6.71700706670655E-12 1.142331989593912E-8 -1.140963335068827E-8 8.861835071345E-11
peri 6.616332019202329E-14 -1.51046496312003E-13 1.272664550925602E-9 -1.140963335068827E-8 1.181068408109048E-8 -8.921566574020166E-11
i -1.271121010454527E-15 2.90826321873637E-15 -2.219665933021205E-12 8.861835071345E-11 -8.921566574020166E-11 3.06808550404933E-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 16.8   n/a MPO436862  

173603 (2001 DF76)          Discovered 2001-Feb-20 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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