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5959 Shaklan (1989 NB1)
Classification: Main-belt Asteroid          SPK-ID: 2005959
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09538493632383203 3.4439e-08  
a 3.191928858781021 1.859e-08 au
q 2.887466927835991 1.0898e-07 au
i 17.83092216720508 3.9688e-06 deg
node 135.3910881921447 1.1764e-05 deg
peri 149.5805351599476 2.3127e-05 deg
M 200.6354854093265 2.1425e-05 deg
tp 2460122.577352556949
(2023-Jun-27.07735256)
0.00012675 TDB
period 2082.947058654224
5.70
1.8197e-05
4.982e-08
d
yr
n .1728320451085267 1.5099e-09 deg/d
Q 3.49639078972605 2.0363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3218  
   data-arc span      26152 days (71.60 yr)  
   first obs. used      1949-06-16  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38581  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:28:08  

Additional Information
 Earth MOID = 1.88235 au 
 Jupiter MOID = 1.82498 au 
 T_jup = 3.115 
[ 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 12.29   n/a E2021B10  
diameter diameter 19.94 km 1.4 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4
rotation period rot_per 13.172 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.]
geometric albedo albedo 0.1770   0.027 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 4

5959 Shaklan (1989 NB1)          Discovered 1989-Jul-02 by Helin, E. F. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1989 NB1 = 1949 MG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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