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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1899939592957361 3.7849e-08  
a 2.810880850183428 1.3803e-08 au
q 2.276830468348514 1.0626e-07 au
i 7.146769545706244 4.3548e-06 deg
node 278.7975893556272 4.0991e-05 deg
peri 180.9066189006845 4.4077e-05 deg
M 23.75969879805965 1.4755e-05 deg
tp 2459086.894197967126
(2020-Aug-25.39419797)
7.0319e-05 TDB
period 1721.321851738911
4.71
1.2679e-05
3.471e-08
d
yr
n .2091415964052983 1.5405e-09 deg/d
Q 3.344931232018342 1.6426e-08 au
  Orbit Determination Parameters
   # obs. used (total)      686  
   data-arc span      12028 days (32.93 yr)  
   first obs. used      1988-02-16  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52208  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:19:03  

Additional Information
 Earth MOID = 1.29352 au 
 Jupiter MOID = 1.8311 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 15.45   n/a E2021B55  

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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