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118171 (1988 DT1)
Classification: Main-belt Asteroid          SPK-ID: 2118171
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189895983763428 4.518e-08  
a 2.810540024514404 1.6994e-08 au
q 2.276829761652752 1.3145e-07 au
i 7.147142683972759 4.5728e-06 deg
node 278.7978438340486 4.6116e-05 deg
peri 180.9386235987945 4.8951e-05 deg
M 341.9066046707048 1.5945e-05 deg
tp 2459086.996923339216
(2020-Aug-25.49692334)
7.6559e-05 TDB
period 1721.008789969925
4.71
1.5609e-05
4.274e-08
d
yr
n .2091796405097333 1.8972e-09 deg/d
Q 3.344250287376056 2.0221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      11906 days (32.60 yr)  
   first obs. used      1988-02-16  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53163  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 20:11:32  

Additional Information
 Earth MOID = 1.29371 au 
 Jupiter MOID = 1.83164 au 
 T_jup = 3.283 
[ 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 15.4   n/a MPO359566  

118171 (1988 DT1)          Discovered 1988-Feb-16 by Elst, E. W. at La Silla
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 1988 DT1 = 2000 SR93 = 2001 XB253 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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