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227113 (2005 NM55)
Classification: Main-belt Asteroid          SPK-ID: 2227113
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .273061619071582 5.9466e-08  
a 2.348207829246176 1.2857e-08 au
q 1.70700239747565 1.4035e-07 au
i 7.656876900449027 6.5109e-06 deg
node 323.1103870748301 4.3663e-05 deg
peri 3.605284955026864 4.484e-05 deg
M 84.40752421506025 1.1278e-05 deg
tp 2458892.336012041397
(2020-Feb-12.83601204)
4.0337e-05 TDB
period 1314.326379037461
3.60
1.0794e-05
2.955e-08
d
yr
n .2739045687142365 2.2495e-09 deg/d
Q 2.989413261016701 1.6367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      14723 days (40.31 yr)  
   first obs. used      1980-09-13  
   last obs. used      2021-01-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:29  

Additional Information
 Earth MOID = .693461 au 
 Jupiter MOID = 2.36572 au 
 T_jup = 3.497 
[ 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 17.20   n/a MPCxxxxx  
diameter diameter 1.885 km 0.496 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227113 (2005 NM55)          Discovered 2005-Jul-07 by Broughton, J. at Reedy Creek
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2005 NM55 = 1980 RD7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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