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JPL Small-Body Database Browser
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2056 Nancy (A909 TB)
Classification: Main-belt Asteroid          SPK-ID: 2002056
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 .139173410390917 3.6589e-08  
a 2.217394239565324 5.7503e-09 au
q 1.908791921063844 8.1828e-08 au
i 3.936064297555515 4.4229e-06 deg
node 225.7637722333631 4.6165e-05 deg
peri 145.7124636773034 4.8045e-05 deg
M 182.5606933517204 1.2905e-05 deg
tp 2459594.942880988114
(2022-Jan-15.44288099)
4.3464e-05 TDB
period 1206.043019430362
3.30
4.6914e-06
1.284e-08
d
yr
n .2984968149560992 1.1611e-09 deg/d
Q 2.525996558066804 6.5506e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2501  
   data-arc span      40230 days (110.14 yr)  
   first obs. used      1909-10-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41989  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:09:42  

Additional Information
 Earth MOID = .910504 au 
 Jupiter MOID = 2.94537 au 
 T_jup = 3.636 
[ 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 12.4   n/a MPO502173  
diameter diameter 7.783 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 1343. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Polakis, T.; Skiff, B. (2019) Minor Planet Bull. 46, 132-137.]
geometric albedo albedo 0.351   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   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)

2056 Nancy (A909 TB)          Discovered 1909-Oct-15 by Helffrich, J. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A909 TB = 1929 VQ = 1942 RA1 = 1962 XE = 1972 VC1 = 1974 HL2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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