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19405 (1998 FT8)
Classification: Main-belt Asteroid          SPK-ID: 2019405
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397731893175429 4.4758e-08  
a 2.685966342586154 1.0517e-08 au
q 2.310540260483311 1.2111e-07 au
i 11.09973786029845 5.6163e-06 deg
node 21.29433264591316 1.772e-05 deg
peri 213.2230575729418 2.441e-05 deg
M 337.4326742914026 1.6371e-05 deg
tp 2459101.292187900348
(2020-Sep-08.79218790)
7.3131e-05 TDB
period 1607.86386976733
4.40
9.4436e-06
2.586e-08
d
yr
n .2238995519266782 1.3151e-09 deg/d
Q 3.061392424688997 1.1987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      17072 days (46.74 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51551  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:32:19  

Additional Information
 Earth MOID = 1.30905 au 
 Jupiter MOID = 1.95494 au 
 T_jup = 3.333 
[ 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 14.0   n/a MPO279717  
diameter diameter 3.973 km 0.776 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19405 (1998 FT8)          Discovered 1998-Mar-21 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1916-Dec-22 17:46 00:02 Jupiter 1.94075955211101 1.9407591245832 1.94075997964026 3.48569332390342 3.35815136798016 2421220.240289586 1.58174170914099 162.117172475208 13.6528783672297 -84.8668689256646 2359349.75310729 T 29 CATAB v2.0f-lin.ifort 2020-Jun-23 18:32:33 2020-Jun-23 18:32
1951-Dec-01 00:07 00:01 Jupiter 1.98485077072739 1.98485026078572 1.98485128067254 3.84485100945871 3.73221005991437 2433981.504703680 1.0067797302742 195.975685080731 14.9345066590564 -85.0655873272552 2581472.80428738 T 29 CATAB v2.0f-lin.ifort 2020-Jun-23 18:32:33 2020-Jun-23 18:32
2035-Dec-22 23:54 < 00:01 Jupiter 1.97549040718307 1.97548998510192 1.97549082926501 3.22562035081086 3.08983741630162 2464684.496111276 0.395333074918784 106.405674711541 8.23859091354186 -81.7365701639963 2471176.1008714 T 29 CATAB v2.0f-lin.ifort 2020-Jun-23 18:32:33 2020-Jun-23 18:32
2070-Nov-27 11:32 < 00:01 Jupiter 1.94802456296805 1.94802411924653 1.94802500669223 3.64206076272863 3.52065116017554 2477442.980742970 0.934203424860983 183.136268468993 11.3604254181113 -85.2833909541291 2408617.34416719 T 29 CATAB v2.0f-lin.ifort 2020-Jun-23 18:32:33 2020-Jun-23 18:32
2189-Nov-27 07:10 00:03 Jupiter 1.94878246169677 1.94878198397312 1.9487829394213 3.3705919358512 3.23907489786054 2520906.798482062 2.88236202680953 131.045409493892 23.2839950792138 -83.5754804900551 1840284.93961152 T 29 CATAB v2.0f-lin.ifort 2020-Jun-23 18:32:33 2020-Jun-23 18:32

Alternate Designations
 1998 FT8 = 4238 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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