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JPL Small-Body Database Browser
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212302 (2005 NX57)
Classification: Main-belt Asteroid          SPK-ID: 2212302
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04090509078985437 6.1355e-08  
a 3.174834020152943 3.9916e-08 au
q 3.044967146315869 2.15e-07 au
i 9.969308351189095 5.9787e-06 deg
node 146.9006485351801 3.3884e-05 deg
peri 5.468429427557318 9.7684e-05 deg
M 15.21244871039355 8.718e-05 deg
tp 2458913.187466286092
(2020-Mar-04.68746629)
0.00050102 TDB
period 2066.236194803498
5.66
3.8967e-05
1.067e-07
d
yr
n .1742298392145998 3.2858e-09 deg/d
Q 3.304700893990018 4.1549e-08 au
  Orbit Determination Parameters
   # obs. used (total)      327  
   data-arc span      6342 days (17.36 yr)  
   first obs. used      2002-12-07  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:44:19  

Additional Information
 Earth MOID = 2.05579 au 
 Jupiter MOID = 1.68489 au 
 T_jup = 3.176 
[ 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 15.2   n/a MPO422825  
diameter diameter 5.221 km 0.543 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.38 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:
[Stephens, R.D.; French, L.M.; James, D.; Connour, K.; Warner, B.D. (2016) Minor Planet Bull. 43, 10-15.]
geometric albedo albedo 0.049   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212302 (2005 NX57)          Discovered 2005-Jul-06 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 NX57 = 2004 JR39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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