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215256 (2001 NR2)
Classification: Main-belt Asteroid          SPK-ID: 2215256
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1562307868324374 4.1952e-08  
a 2.618771307191675 1.5957e-08 au
q 2.209638605334908 1.1241e-07 au
i 6.247183585961433 3.5416e-06 deg
node 90.59317649919502 4.6816e-05 deg
peri 222.6404662025234 4.9041e-05 deg
M 154.9933054405235 1.3705e-05 deg
tp 2458334.068943971789
(2018-Aug-03.56894397)
5.8794e-05 TDB
period 1547.906727250358
4.24
1.4148e-05
3.874e-08
d
yr
n .2325721528709227 2.1257e-09 deg/d
Q 3.02790400904844 1.845e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      6770 days (18.54 yr)  
   first obs. used      2001-06-23  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56172  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-30 01:04:11  

Additional Information
 Earth MOID = 1.20016 au 
 Jupiter MOID = 2.24069 au 
 T_jup = 3.380 
[ 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 16.0   n/a MPO454546  
diameter diameter 3.688 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.062   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

215256 (2001 NR2)          Discovered 2001-Jul-13 by NEAT at Palomar
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2001 NR2 = 2006 UG70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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