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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457046.5 (2015-Jan-24.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1111323336858063 1.5529e-08  
q 2.015427195296225 3.5835e-08 au
tp 2456648.612307234327
(2013-Dec-22.11230723)
3.1447e-05 TDB
node 52.18205424089587 3.6482e-06 deg
peri 32.61889790191861 8.8217e-06 deg
i 4.504189697669021 1.1202e-06 deg
  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
 Jupiter MOID = 2.6553 au 
 T_jup = 3.603 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.411362424830766E-16 -5.514575743644726E-16 -1.177372143147601E-13 -4.155412311314319E-16 -3.70633386805617E-14 -6.567132928052673E-15
q -5.514575743644726E-16 1.28418092125437E-15 2.638569521907504E-13 1.043856291468241E-15 8.559038480464769E-14 1.458749734009029E-14
tp -1.177372143147601E-13 2.638569521907504E-13 9.889270699151464E-10 -4.778181282358864E-12 2.508021126049706E-10 -4.718645403402903E-12
node -4.155412311314319E-16 1.043856291468241E-15 -4.778181282358864E-12 1.330953983554288E-11 -1.449106587573156E-11 1.135379574494511E-13
peri -3.70633386805617E-14 8.559038480464769E-14 2.508021126049706E-10 -1.449106587573156E-11 7.782208099972982E-11 -1.100145947444609E-12
i -6.567132928052673E-15 1.458749734009029E-14 -4.718645403402903E-12 1.135379574494511E-13 -1.100145947444609E-12 1.254854524472891E-12

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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