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JPL Small-Body Database Browser
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1122 Neith (1928 SB)
Classification: Main-belt Asteroid          SPK-ID: 2001122
[ 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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2558136382266765 4.1219e-08  
a 2.608299535513162 1.0337e-08 au
q 1.94106094174859 1.0695e-07 au
i 4.73373338167995 4.4224e-06 deg
node 63.38373980621116 4.8225e-05 deg
peri 328.7643549660119 4.8863e-05 deg
M 265.205599576156 1.2092e-05 deg
tp 2459405.649032505497
(2021-Jul-10.14903251)		 5.3413e-05 TDB
period 1538.631512513811
4.21		 9.1464e-06
2.504e-08		 d
yr
n .2339741498026601 1.3909e-09 deg/d
Q 3.275538129277734 1.2981e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2346  
   data-arc span      34599 days (94.73 yr)  
   first obs. used      1924-11-24  
   last obs. used      2019-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43097  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:15:09  

Additional Information
 Earth MOID = .949126 au 
 Jupiter MOID = 2.16663 au 
 T_jup = 3.359 
[ 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 11.8   n/a MPO452174  
diameter diameter 11.566 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 12.599 h n/a LCDB (Rev. 2019-August); 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:
[Oey, J. (2009) Minor Planet Bull. 36, 162-165.]
geometric albedo albedo 0.284   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

1122 Neith (1928 SB)          Discovered 1928-Sep-17 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1928 SB = 1941 YH = 1953 OA = A924 VA 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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