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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1109834639027534 3.5948e-08  
a 2.961071879963655 1.6535e-08 au
q 2.632441865860251 1.1152e-07 au
i 11.67054631582062 4.0246e-06 deg
node 79.49280372453077 1.9337e-05 deg
peri 248.3725343422488 3.208e-05 deg
M 38.18630022256114 2.277e-05 deg
tp 2459003.086461142003
(2020-Jun-02.58646114)
0.00011821 TDB
period 1861.109182472989
5.10
1.5589e-05
4.268e-08
d
yr
n .1934330362722955 1.6202e-09 deg/d
Q 3.289701894067059 1.837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1429  
   data-arc span      11051 days (30.26 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48113  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:53:36  

Additional Information
 Earth MOID = 1.64565 au 
 Jupiter MOID = 2.03416 au 
 T_jup = 3.226 
[ 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 13.86   n/a E2021B10  
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. 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:
[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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