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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1974070876697109 3.3282e-08  
a 2.555073426155525 1.0557e-08 au
q 2.050683822315893 8.4702e-08 au
i 15.15072838781066 3.5949e-06 deg
node 259.8159784286479 1.8039e-05 deg
peri 53.94258371528809 2.3222e-05 deg
M 105.2446035798757 1.3996e-05 deg
tp 2458960.385184652629
(2020-Apr-20.88518465)
5.8495e-05 TDB
period 1491.775617795898
4.08
9.2457e-06
2.531e-08
d
yr
n .241323155912617 1.4957e-09 deg/d
Q 3.059463029995157 1.2641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2145  
   data-arc span      13700 days (37.51 yr)  
   first obs. used      1983-08-11  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42125  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:29:00  

Additional Information
 Earth MOID = 1.07249 au 
 Jupiter MOID = 2.26383 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 13.68   n/a E2021B10  
diameter diameter 5.402 km 0.165 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.05707 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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