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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .111473052960978 1.5516e-08  
a 2.267837713190128 5.4288e-09 au
q 2.015034919680781 3.5829e-08 au
i 4.50102477636268 1.1198e-06 deg
node 52.14833053591327 3.652e-06 deg
peri 33.15288374727321 8.7988e-06 deg
M 72.48207770034955 9.4202e-06 deg
tp 2459145.343443650271
(2020-Oct-22.84344365)
3.2401e-05 TDB
period 1247.430580835382
3.42
4.4792e-06
1.226e-08
d
yr
n .288593213546933 1.0363e-09 deg/d
Q 2.520640506699474 6.034e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2173  
   data-arc span      24441 days (66.92 yr)  
   first obs. used      1954-06-30  
   last obs. used      2021-05-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47508  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:50:49  

Additional Information
 Earth MOID = 1.03274 au 
 Jupiter MOID = 2.6553 au 
 T_jup = 3.603 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.43   n/a MPO614063  

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

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