Table 2
Data for the candidate cometary trail particles considered in this work.
| Day | Sensor | Measured | Measured | Compatibility with trail origin | Source | Simulated | Trail flux | Dust density | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
| impact speed | particle mass | based on | comet | impact speed | Φ | D | |||||
| (km s−1) | (kg) | Time | Direction | Speed | (km s−1) | (m−2 day−1) | (m−3) | ||||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | |
| 1975-11-01 | S |  |
 |
Yes | No | – | – | – | – | – | |
| 1976-05-09 | S |  |
 |
Yes | Possibly | (No) | 45P/H-M-P | 33 ± 1.8 | ≈67 | ≈2 × 10−8 | |
| 1976-05-09 | E |  |
 |
Yes | Possibly | (Yes) | |||||
| 1977-05-25 | E |  |
 |
Possibly | No | – | – | – | – | – | |
| 1978-12-17 | E |  |
 |
Possibly | Yes | (No) | 72P/D-F | 21 ± 1.9 | ≾158 | ≾9 × 10−8 | |
| 1979-06-26 | S |  |
 |
Possibly | No | – | – | – | – | ||
| 1980-01-02 | E |  |
 |
Possibly | Possibly | (No) | 72P/D-F | 21 ± 2.5 | ≾158 | ≾9 × 10−8 | |
Notes. Columns: are detection day, sensor that detected the particle, measured impact speed, measured particle mass, impact speed derived from IMEX simulation, compatibility with trail origin based on given parameters, source comet, flux in trail from source comet. Measured data in Cols. 1–4 are from Grün (1981).
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