Updated:2013-08-22

Meteorite Action!

1970-01-03 : Lost City (U.S.A)

Spatial and Temporal Informations

Location of fall
Lost City (Oklahoma, U.S.A)
Coordinates
360'11" N, -955'42" E
Date of fall
January 3, 1970 20h 14mn LT
January 4, 1970 02h 14mn UT
Initial velocity
14.1485 0.0012 km/s
Start height of bolide
86 km
Terminal height of bolide
19 km
Fireball terminal velocity
3.4 km/s
Trajectory slope (// horizontal)
38

Photo

Fireball from Hominy station, Oklahoma

 
Credit: Smithsonian Astrophysical Observatory
 From Prairie Network

Meteorite on snowy road just minutes after discovery

 
Credit: Sky and telescope mag.
 

4 fragments were recovered wich fitted together

 
Credit: New Scientist mag.
 

22 pounds piece

 
Credit: Popular Mechanics mag.
 

Physical and kinetics Informations

Maximum absolute magnitude
-12 ( 28 km of height )
Pre-atmospheric mass of the meteoroid
163 5 kg
Total known weight (TKW)
17.232 kg
4 fragments:
  • January 9, 1970 : 9820 g 20x17x14 cm
  • January 17, 1970 : 272 g 6x6x2 cm
  • February 2, 1970 : 6580 g 18x14x10 cm
  • May 4,1970 : 640 g 8x6x4 cm
Density
3.73 g cm-3
Classification
Ordinary chondrite H5 (bronzite and olivine)
Cosmic-ray exposure age
8 2 Million years

Orbital

Semimajor axis (a)
1.6 UA
Inclination (i)
11.98
Eccentricity (e)
0.417
Longitude of ascending nodet (W)
283.04
Argument of perihelion (w)
161
Perihelion distance (q)
0.933 UA
Aphelion distance (Q)
2.27 UA
TXT_VUE_DESSUS
Vue parallele au grand axe
Vue parallele  la ligne des noeuds

Lien

Meteoritical Bulletin Database
Data on meteorite in the Meteoritical Society Database
 

Reference

Lost City Meteorite - its Recovery and a Comparison with Other Fireballs
McCrosky, R. E.; Posen, A.; Schwartz, G.; Shao, C.-Y.
SAO Special Report #336 (1971), pp. 1-41
The Pribram, Lost City, Innisfree, and Neuschwanstein falls: An analysis of the atmospheric trajectories
M. I. Gritsevich
Solar System Research 42 (2008), pp. 372-390