Astronaut Scientific Debriefings, 1962-1963

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Meteor ionization in the E-region

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Table I. Calculation of the number of electrons produced per cm of path per meteor and per twenty-four hours as a function of visual magnitude. (number in upper right is power of 10)

Visual magnitude | Observed No. of meteors | True No. | Mass, g | Radius cm | Height = 85 km | Height = 100 km | Height = 115 km
No. of atoms evap. cm-1 | No. of electrons ne cm-1 | Total No. of electrons ne cm-1 | No. of atoms cm-1 | ne cm-1 | Total ne cm-1 | No. of atoms per cm | ne cm-1 | Total ne cm-1
-3 | 2.8+4 | 2.8+4 | 4 | 6.5-1 | 6.022 | 1.514 | 4.218 | 6.721 | 1.6813 | 4.717 | 6.720 | 1.6812 | 4.716
-2 | 7.1+4 | 7.1+4 | 1.6 | 4.83-1 | 3.022 | 7.513 | 5.3218 | 3.721 | 9.2512 | 6.5617 | 3.720 | 9.211 | 6.616
-1 | 1.8+5 | 1.8+5 | 6.3-1 | 3.54-1 | 1.7222 | 4.313 | 7.7318 | 2.121 | 5.2512 | 9.4517 | 2.120 | 5.311 | 9.516
0 | 4.5+5 | 4.5+5 | 2.5-1 | 2.60-1 | 8.321 | 2.113 | 9.518 | 1.121 | 2.7512 | 1.2518 | 1.120 | 2.811 | 1.2517
1 | 1.1+6 | 1.1+6 | 1.0-1 | 1.92-1 | 4.021 | 1.013 | 1.119 | 5.620 | 1.412 | 1.5418 | 5.819 | 1.4511 | 1.6017
2 | 2.8+6 | 2.8+6 | 4.0-2 | 1.41-1 | 1.8621 | 4.6512 | 1.3019 | 3.120 | 7.7511 | 2.1718 | 3.219 | 8.010 | 2.2417
3 | 6.4+6 | 7.1+6 | 1.6-2 | 1.04-1 | 8.020 | 2.012 | 1.4219 | 1.620 | 4.011 | 2.8418 | 1.719 | 4.310 | 3.017
4 | 9.0+6 | 1.87 | 6.3-3 | 7.6-2 | 2.920 | 7.2511 | 1.3019 | 8.519 | 2.1311 | 3.8418 | 9.218 | 2.310 | 4.117
5 | 3.6+6 | 4.57 | 2.5-3 | 5.6-2 | 8.019 | 2.011 | 9.018 | 4.419 | 1.111 | 4.9518 | 5.018 | 1.310 | 5.617
6 |  | 1.18 | 1.0-3 | 4.12-2 | 9.1718 | 2.4310 | 2.718 | 2.319 | 5.7510 | 6.3218 | 2.718 | 6.89 | 7.417
7 |  | 2.88 | 4.0-4 | 3.03-2 | 1.4618 | 3.659 | 1.0218 | 1.1519 | 2.8810 | 8.0518 | 1.4618 | 3.79 | 1.0218
8 |  | 7.18 | 1.6-4 | 2.24-2 |  |  |  | 5.7518 | 1.4419 | 1.0219 | 7.817 | 1.969 | 1.3918
9 |  | 1.89 | 6.3-5 | 1.65-2 |  |  |  | 2.8218 | 7.19 | 1.2719 | 4.217 | 1.069 | 1.9118
10 |  | 4.59 | 2.5-5 | 1.21-2 |  |  |  | 1.2018 | 3.09 | 1.3519 | 2.1617 | 5.48 | 2.418
15 |  | 4.511 | 2.5-7 | 2.6-3 |  |  |  | (1.0816) | 2.77 | 1.2119 | 8.215 | 2.057 | 9.218
20 |  | 4.513 | 2.5-9 | 6.0-4 |  |  |  |  |  |  | 1.1614 | 2.95 | 1.3019
25 |  | 4.515 | 2.5-11 | 1.21-4 |  |  |  |  |  |  |  |  |
30 |  | 4.517 | 2.5-13 | 2.6-5 |  |  |  |  |  |  |  |  |