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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .197640531638337 3.4255e-08  
a 2.555133933425195 1.1662e-08 au
q 2.050135904415884 8.8007e-08 au
i 15.15187231291606 4.1758e-06 deg
node 259.8161813142449 1.8808e-05 deg
peri 53.89723262987422 2.4125e-05 deg
M 9.698645014344516 1.5005e-05 deg
tp 2458960.309121949351
(2020-Apr-20.80912195)
6.2193e-05 TDB
period 1491.828608721552
4.08
1.0213e-05
2.796e-08
d
yr
n .2413145839242942 1.652e-09 deg/d
Q 3.060131962434506 1.3967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1658  
   data-arc span      13556 days (37.11 yr)  
   first obs. used      1983-08-11  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45644  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 16:24:36  

Additional Information
 Earth MOID = 1.07236 au 
 Jupiter MOID = 2.26461 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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