Table 1.
Properties of the particles of Subset A.
| # | Date | mmsr | miter | vmsr | viter | rU | zU | (l, b)U | (l, b)det | Origin | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| [kg] | [km/s] | [au] | |||||||||
| A1 | 1 | 30 Apr. 1994 | 4.16 × 10−10 | 4.74 × 10−14 | 2.0 | 35.8 | 3.19 | −2.60 | (173.2° ,−54.6° ) | (326° ,−21° ) | (i) (s) |
| 2 | 16 Aug. 1994 | 2.72 × 10−10 | 4.56 × 10−14 | 2.0 | 39.6 | 2.49 | −2.36 | (193.9° ,−72.1° ) | (339° ,−28° ) | (i) (s) | |
| 3 | 2 Oct. 1994 | 9.47 × 10−10 | 4.83 × 10−14 | 2.0 | 42.4 | 2.16 | −2.11 | (239.4° ,−79.0° ) | (308° , − 2° ) | I S | |
| 4 | 3 Sep. 1995 | 2.72 × 10−10 | 2.85 × 10−14 | 2.0 | 45.3 | 2.26 | +2.22 | (86.3°, 78.5°) | (169° ,−30° ) | ||
| 5 | 29 Dec. 1998 | 8.15 × 10−10 | 1.07 × 10−13 | 2.0 | 31.0 | 5.21 | −1.06 | (159.7° ,−11.7° ) | (275° ,−31° ) | I S | |
| 6 | 4 Jun. 2003 | 4.65 × 10−10 | 6.33 × 10−14 | 2.0 | 32.9 | 4.93 | +1.77 | (153.2° ,21.1° ) | (54°, −20°) | ||
| A2 | 7 | 27 Oct. 1997 | 5.11 × 10−11 | 4.34 × 10−15 | 2.0 | 29.8 | 5.32 | +0.87 | (155.6° ,9.5° ) | (70°, −10°) | |
| 8 | 23 Sep. 2006 | 2.32 × 10−11 | 4.05 × 10−15 | 2.5 | 33.2 | 3.24 | −2.66 | (174.2° ,−55.2° ) | (301° ,−24° ) | I S | |
| A3 | 9 | 25 Aug. 1997 | 1.56 × 10−12 | 1.74 × 10−13 | 10.4 | 32.2 | 5.24 | +1.15 | (155.0° ,12.7° ) | (22°, 67°) | |
| 10 | 1 Apr. 2007 | 3.69 × 10−12 | 1.84 × 10−14 | 7.8 | 43.2 | 2.01 | −1.94 | (286.2° ,−75.5° ) | (310° ,31° ) | (i) S | |
Notes. The table contains the respective particle’s date of impact; the measurement-derived mass, mmsr; the iteratively calculated mass, miter; the measurement-derived impact speed, vmsr; the iteratively calculated impact speed, viter; the heliocentric distance, rU; the distance to the ecliptic plane, zU; the spacecraft’s ecliptic longitude and latitude, (l, b)U; and the detector pointing, (l, b)det. Particles are numbered as in Fig. 9. We note that for particles 1–8 the measurement-derived impact speeds and particle masses, vmsr and mmsr (italicised values), were most likely severely underestimated and severely overestimated, respectively. The potential origin (cf. Sect. 6.2) is indicated by ‘I’ for ISD and ‘S’ for Sun-ward origins (e.g. β-meteoroids); parenthesised lowercase letters indicate that the origin requires wall impacts to be considered.
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