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19588 (1999 NL11)
Classification: Main-belt Asteroid          SPK-ID: 2019588
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1686961918901823 3.0847e-08  
a 3.13617096322381 1.4845e-08 au
q 2.607110864611388 9.6699e-08 au
i 1.318090079821373 3.4115e-06 deg
node 148.4447281094543 0.00015175 deg
peri 268.4721913622939 0.00015215 deg
M 235.4684439474021 1.2281e-05 deg
tp 2459902.237903626495
(2022-Nov-18.73790363)
7.2548e-05 TDB
period 2028.607473585551
5.55
1.4404e-05
3.944e-08
d
yr
n .1774616354753452 1.26e-09 deg/d
Q 3.665231061836232 1.7349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1694  
   data-arc span      15657 days (42.87 yr)  
   first obs. used      1977-09-08  
   last obs. used      2020-07-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51077  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:58:59  

Additional Information
 Earth MOID = 1.61881 au 
 Jupiter MOID = 1.68778 au 
 T_jup = 3.189 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.83   n/a E2021B10  
diameter diameter 9.479 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.103   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19588 (1999 NL11)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NL11 = 1977 RW8 = 1999 RA120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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