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215954 (2005 NS31)
Classification: Main-belt Asteroid          SPK-ID: 2215954
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2644222547345164 4.682e-08  
a 2.640579884768404 2.2648e-08 au
q 1.942351797831333 1.2612e-07 au
i 14.3438626329712 5.1637e-06 deg
node 177.5703255284099 1.8226e-05 deg
peri 166.4864952882182 1.988e-05 deg
M 116.7806128874933 1.0165e-05 deg
tp 2458492.088176065281
(2019-Jan-08.58817607)
3.9999e-05 TDB
period 1567.282891320571
4.29
2.0163e-05
5.52e-08
d
yr
n .2296968862441094 2.9551e-09 deg/d
Q 3.338807971705475 2.8636e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      6716 days (18.39 yr)  
   first obs. used      2001-09-12  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53536  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 03:29:15  

Additional Information
 Earth MOID = .93846 au 
 Jupiter MOID = 2.11597 au 
 T_jup = 3.302 
[ 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 15.8   n/a MPO454551  
diameter diameter 1.756 km 0.388 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.301   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215954 (2005 NS31)          Discovered 2005-Jul-05 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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