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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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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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1114179417343155 1.5608e-08  
a 2.267870292977071 5.4799e-09 au
q 2.015188852813167 3.6118e-08 au
i 4.501047749759577 1.1231e-06 deg
node 52.15354968855764 3.652e-06 deg
peri 33.186274106 8.9559e-06 deg
M 15.88967291523405 9.6332e-06 deg
tp 2459145.439747099215
(2020-Oct-22.93974710)
3.3325e-05 TDB
period 1247.457461838557
3.42
4.5214e-06
1.238e-08
d
yr
n .288586994757654 1.046e-09 deg/d
Q 2.520551733140975 6.0904e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2054  
   data-arc span      24364 days (66.70 yr)  
   first obs. used      1954-06-30  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47685  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:03:10  

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

[ show close-approach data ]
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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