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JPL Small-Body Database Browser
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136821 (1997 NR3)
Classification: Main-belt Asteroid          SPK-ID: 2136821
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0887899920667619 5.5652e-08  
a 2.528939230520099 1.72e-08 au
q 2.304394736304896 1.4199e-07 au
i 3.630064874174081 6.1194e-06 deg
node 276.8040179962981 7.8294e-05 deg
peri 31.72332787403087 8.3227e-05 deg
M 148.7005368092768 3.0007e-05 deg
tp 2457993.741243336000
(2017-Aug-28.24124334)
0.00012006 TDB
period 1468.946629824223
4.02
1.4986e-05
4.103e-08
d
yr
n .2450735736008858 2.5002e-09 deg/d
Q 2.753483724735301 1.8727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      9330 days (25.54 yr)  
   first obs. used      1993-07-24  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6102  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:48:48  

Additional Information
 Earth MOID = 1.2897 au 
 Jupiter MOID = 2.43044 au 
 T_jup = 3.444 
[ 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 16.2   n/a MPO417724  

136821 (1997 NR3)          Discovered 1997-Jul-06 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1997 NR3 = 2004 FH19 = 2005 ME44 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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