Abstract: On December 14, 2022, the SonotaCo Network in Japan recorded a Geminid meteor with a radiant position at
α = 114.3° and δ = +31.6° with a geocentric velocity vg = 33.7 km/s (Equinox J2000). The parent body is Phaethon and the spectrum of the meteor shows dominance of iron. The ratio of iron meteors to all meteors during the recording period on the same camera was 2.6 %.
Observations
The SonotaCo Network in Japan has recorded the spectrum of a －2 magnitude meteor of the Geminids.
Figure 1 – Spectrum of a －2 magnitude meteor of the Geminids.
Figure 2 – Orbit of the Geminid meteor with the spectrum.
Figure 3 – Result of the spectrum analysis.
Figure 4 – The trajectory in the atmosphere and the ground track.
Table 1 – Comparing the orbits with parent body.
| a AU |
e | q AU |
i (°) |
ω (°) |
Ω (°) |
DSH | Tj | |
| Meteor | 1.25 | 0.890 | 0.138 | 21.9 | 325.6 | 262.30 | 0.00 | 4.56 |
| Phaeton | 1.27 | 0.890 | 0.140 | 22.3 | 322.2 | 265.22 | 0.02 | 4.50 |
| Geminids | 1.31 | 0.889 | 0.145 | 22.9 | 324.3 | 261.70 | 0.03 | 4.4 |
