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11957 (1994 DS)
Classification: Main-belt Asteroid          SPK-ID: 2011957
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1114179818212421 3.3128e-08  
a 2.267870294623517 5.6747e-09 au
q 2.01518876336422 7.4944e-08 au
i 4.501044563371857 3.5934e-06 deg
node 52.15352519806986 4.5731e-05 deg
peri 33.18630900637995 4.8519e-05 deg
M 15.88966169619321 1.6026e-05 deg
tp 2459145.439785915022
(2020-Oct-22.93978591)
5.55e-05 TDB
period 1247.457463197015
3.42
4.6821e-06
1.282e-08
d
yr
n .2885869944433881 1.0832e-09 deg/d
Q 2.520551825882815 6.307e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1966  
   data-arc span      24312 days (66.56 yr)  
   first obs. used      1954-06-30  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48227  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:03:17  

Additional Information
 Earth MOID = 1.03259 au 
 Jupiter MOID = 2.6552 au 
 T_jup = 3.602 
[ 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 14.41   n/a E2021B10  

11957 (1994 DS)          Discovered 1994-Feb-17 by Kobayashi, T. at Oizumi
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1994 DS = 1977 EU3 = 1989 UL6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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