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11796 Nirenberg (1980 DS4)
Classification: Main-belt Asteroid          SPK-ID: 2011796
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2014675067930456 3.0034e-08  
a 2.37802902179139 6.8585e-09 au
q 1.898933443689574 7.2614e-08 au
i 4.691443446591748 3.2715e-06 deg
node 173.6345576140392 3.9391e-05 deg
peri 66.96779340489205 4.0056e-05 deg
M 351.7372316554445 8.4795e-06 deg
tp 2459231.243069642306
(2021-Jan-16.74306964)
3.1605e-05 TDB
period 1339.442739977425
3.67
5.7947e-06
1.587e-08
d
yr
n .2687684880102209 1.1627e-09 deg/d
Q 2.857124599893207 8.2403e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2019  
   data-arc span      14718 days (40.30 yr)  
   first obs. used      1980-02-21  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51319  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:57:12  

Additional Information
 Earth MOID = .8913 au 
 Jupiter MOID = 2.16229 au 
 T_jup = 3.508 
[ 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 14.43   n/a E2021B10  
diameter diameter 7.928 km 0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 43.4745 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.042   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11796 Nirenberg           Discovered 1980 Feb. 21 by L. G. Karachkina at the Crimean Astrophysical Observatory.
American mathematician Louis Merses Nirenberg (b. 1925) is an expert in the theory of differential equations, mathematical physics and functional analysis.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000320/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1980 DS4 = 1980 FL = 1989 XP2 = 1991 EL8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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