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1324 Knysna (1934 LL)
Classification: Main-belt Asteroid          SPK-ID: 2001324
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1634149790174416 4.3744e-08  
a 2.185252012966381 5.8756e-09 au
q 1.828149101119658 9.5427e-08 au
i 4.519800378978366 4.5419e-06 deg
node 304.3393956618744 4.762e-05 deg
peri 330.1840648130067 4.9299e-05 deg
M 213.1987104979123 1.4933e-05 deg
tp 2459481.647340913657
(2021-Sep-24.14734091)
4.9699e-05 TDB
period 1179.91499472798
3.23
4.7587e-06
1.303e-08
d
yr
n .3051067251526837 1.2305e-09 deg/d
Q 2.542354924813104 6.8357e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2458  
   data-arc span      31573 days (86.44 yr)  
   first obs. used      1934-06-04  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:59:50  

Additional Information
 Earth MOID = .813441 au 
 Jupiter MOID = 2.57434 au 
 T_jup = 3.656 
[ 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 13.0   n/a MPO458840  
diameter diameter 6.456 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.5538 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2002) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2008) Minor Planet Bull. 35, 163-167.]
[Liu, J.; Gu, Y. (2016) Minor Planet Bull. 43, 8-9.]
geometric albedo albedo 0.321   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1324 Knysna (1934 LL)          Discovered 1934-Jun-15 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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