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19408 (1998 FM11)
Classification: Main-belt Asteroid          SPK-ID: 2019408
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113156626659619 4.5557e-08  
a 2.962111147929814 2.2692e-08 au
q 2.632381782607773 1.4704e-07 au
i 11.67063204793943 5.6269e-06 deg
node 79.49768769014558 2.0682e-05 deg
peri 248.3631187411202 3.4161e-05 deg
M 359.5008122492577 2.6643e-05 deg
tp 2459003.082033496006
(2020-Jun-02.58203350)
0.00013782 TDB
period 1862.089078066958
5.10
2.1398e-05
5.858e-08
d
yr
n .1933312451269611 2.2216e-09 deg/d
Q 3.291840513251854 2.5218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1008  
   data-arc span      10507 days (28.77 yr)  
   first obs. used      1990-11-11  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51539  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:27:48  

Additional Information
 Earth MOID = 1.6475 au 
 Jupiter MOID = 2.03334 au 
 T_jup = 3.225 
[ 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 13.8   n/a MPO347675  
diameter diameter 6.339 km 0.170 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.036 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.175   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19408 (1998 FM11)          Discovered 1998-Mar-22 by Kobayashi, T. at Oizumi
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FM11 = 1990 VX10 = 2000 SM219 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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