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I-ALiRT - Update epochs #2588

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I-ALiRT - Update epochs #2588

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6a22e0c
update swapi
Jan 19, 2026
fabfdc4
add hit mid measurement
Jan 19, 2026
cb991a0
update codice
Jan 19, 2026
2da070e
update test
Jan 20, 2026
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1 change: 1 addition & 0 deletions imap_processing/ialirt/l0/process_codice.py
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Original file line number Diff line number Diff line change
Expand Up @@ -482,6 +482,7 @@ def process_codice(
"met_in_utc": met_to_utc(met[0]).split(".")[0],
"ttj2000ns": int(met_to_ttj2000ns(met[0])),
"instrument": f"{sensor}",
"codice_lo_epoch": int(l1a_lo["epoch"]),
f"{sensor}_c_over_o_abundance": l2_lo.c_over_o_abundance,
f"{sensor}_mg_over_o_abundance": l2_lo.mg_over_o_abundance,
f"{sensor}_fe_over_o_abundance": l2_lo.fe_over_o_abundance,
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4 changes: 4 additions & 0 deletions imap_processing/ialirt/l0/process_hit.py
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Expand Up @@ -162,6 +162,9 @@ def process_hit(xarray_data: xr.Dataset) -> list[dict]:
(grouped_data["group"] == group).values
]
met = int(grouped_data["met"][(grouped_data["group"] == group).values][0])
mid_measurement = (
grouped_data["hit_met"][0] + grouped_data["hit_met"][-1]
) // 2

l1 = create_l1(fast_rate_1, fast_rate_2, slow_rate)

Expand All @@ -172,6 +175,7 @@ def process_hit(xarray_data: xr.Dataset) -> list[dict]:
"met_in_utc": met_to_utc(met).split(".")[0],
"ttj2000ns": int(met_to_ttj2000ns(met)),
"instrument": "hit",
"hit_epoch": int(met_to_ttj2000ns(mid_measurement)),
"hit_e_a_side_low_en": int(l1["IALRT_RATE_1"] + l1["IALRT_RATE_2"]),
"hit_e_a_side_med_en": int(l1["IALRT_RATE_5"] + l1["IALRT_RATE_6"]),
"hit_e_a_side_high_en": int(l1["IALRT_RATE_7"]),
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5 changes: 5 additions & 0 deletions imap_processing/ialirt/l0/process_swapi.py
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Expand Up @@ -166,6 +166,10 @@ def process_swapi_ialirt(
grouped_dataset["met"][(grouped_dataset["group"] == group).values][0]
)

mid_measurement = (
grouped_dataset["swapi_acq"][0] + grouped_dataset["swapi_acq"][-1]
) // 2

# Ensure no duplicates and all values from 0 to 11 are present
if not np.array_equal(seq_values.values.astype(int), np.arange(12)):
incomplete_groups.append(group)
Expand Down Expand Up @@ -212,6 +216,7 @@ def process_swapi_ialirt(
"met_in_utc": met_to_utc(met_values).split(".")[0],
"ttj2000ns": int(met_to_ttj2000ns(met_values)),
"instrument": "swapi",
"swapi_epoch": int(met_to_ttj2000ns(mid_measurement)),
"swapi_pseudo_proton_speed": Decimal(f"{pseudo_speed:.3f}"),
"swapi_pseudo_proton_density": Decimal(f"{pseudo_density:.3f}"),
"swapi_pseudo_proton_temperature": Decimal(f"{pseudo_temperature:.3f}"),
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2 changes: 1 addition & 1 deletion imap_processing/tests/ialirt/unit/test_process_hit.py
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Expand Up @@ -66,7 +66,7 @@ def test_process_spacecraft_packet(sc_packet_path):
)[478]
hit_product = process_hit(sc_xarray_data)

assert len(hit_product[0].keys()) == 17
assert len(hit_product[0].keys()) == 18


def generate_prefixes(prefixes):
Expand Down