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227123 (2005 NR123)
Classification: Main-belt Asteroid          SPK-ID: 2227123
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1299687039237702 4.7329e-08  
a 2.397452815208505 1.3247e-08 au
q 2.085858980097461 1.1509e-07 au
i 2.42312977583234 4.9964e-06 deg
node 279.6625093034934 0.00013778 deg
peri 113.1823980779373 0.00013953 deg
M 2.776773615128037 2.1458e-05 deg
tp 2459190.041690192085
(2020-Dec-06.54169019)
8.0808e-05 TDB
period 1355.887102332499
3.71
1.1238e-05
3.077e-08
d
yr
n .2655088313626562 2.2006e-09 deg/d
Q 2.709046650319548 1.4969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      6550 days (17.93 yr)  
   first obs. used      2002-12-31  
   last obs. used      2020-12-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52044  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:38:31  

Additional Information
 Earth MOID = 1.09219 au 
 Jupiter MOID = 2.70617 au 
 T_jup = 3.515 
[ 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 17.3   n/a MPO437075  
diameter diameter 1.948 km 0.343 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227123 (2005 NR123)          Discovered 2005-Jul-12 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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