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JPL Small-Body Database Browser
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11057 (1991 NL)
Classification: Main-belt Asteroid          SPK-ID: 2011057
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197908673216052 3.6166e-08  
a 2.554711345371968 1.4952e-08 au
q 2.049111812559407 9.4244e-08 au
i 15.15426174016739 5.2447e-06 deg
node 259.8212237473625 1.956e-05 deg
peri 54.07842808961879 2.6559e-05 deg
M 273.038133856951 1.9968e-05 deg
tp 2458960.777824779231
(2020-Apr-21.27782478)
8.3834e-05 TDB
period 1491.458528582764
4.08
1.3094e-05
3.585e-08
d
yr
n .2413744620456089 2.1191e-09 deg/d
Q 3.060310878184529 1.7912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1229  
   data-arc span      13054 days (35.74 yr)  
   first obs. used      1983-08-11  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4997  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:53:03  

Additional Information
 Earth MOID = 1.07087 au 
 Jupiter MOID = 2.26413 au 
 T_jup = 3.363 
[ 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 13.6   n/a MPO344390  
diameter diameter 5.402 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.264   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11057 (1991 NL)          Discovered 1991-Jul-08 by Helin, E. F. at Palomar
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 NL = 1987 QB11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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