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56722 (2000 NH12)
Classification: Main-belt Asteroid          SPK-ID: 2056722
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .164044438369149 6.9131e-08  
a 2.523101903272023 7.952e-09 au
q 2.109201068601633 1.7545e-07 au
i 14.45768434241608 4.0988e-06 deg
node 210.7884795763432 2.4211e-05 deg
peri 93.48758829481696 2.901e-05 deg
M 354.948373323289 1.4848e-05 deg
tp 2459021.041367897805
(2020-Jun-20.54136790)
6.0364e-05 TDB
period 1463.863606014669
4.01
6.9205e-06
1.895e-08
d
yr
n .2459245509765016 1.1626e-09 deg/d
Q 2.937002737942413 9.2565e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1471  
   data-arc span      7885 days (21.59 yr)  
   first obs. used      1999-04-11  
   last obs. used      2020-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51253  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:56:09  

Additional Information
 Earth MOID = 1.15415 au 
 Jupiter MOID = 2.40223 au 
 T_jup = 3.393 
[ 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 14.5   n/a MPO385181  
diameter diameter 4.193 km 1.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 85.3783 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.191   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56722 (2000 NH12)          Discovered 2000-Jul-05 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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