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test: 修正日食中心阴影边界测试的时标换算

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- 将日下点计算由 TT2UTC 改为 TT2UT1，使测试与地球自转几何口径一致
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兔子
2026-10-16 07:52:20 +08:00
parent 044f2f4381
commit 0e3825d5ba
1 changed files with 1 additions and 1 deletions
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geojson/solar_eclipse_central_shadow_region_test.go
+1 -1
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@@ -169,7 +169,7 @@ func centralShadowBoundaryLines(t *testing.T, feature decodedFeature) [][][2]flo
func centralShadowSubsolarPoint(value time.Time) (float64, float64) { func centralShadowSubsolarPoint(value time.Time) (float64, float64) {
ttJDE := basic.UTC2TT(basic.Date2JD(value.UTC())) ttJDE := basic.UTC2TT(basic.Date2JD(value.UTC()))
ra, dec := basic.HSunApparentRaDec(ttJDE) ra, dec := basic.HSunApparentRaDec(ttJDE)
utJDE := basic.TT2UTC(ttJDE) utJDE := basic.TT2UT1(ttJDE)
longitude := ra - basic.ApparentSiderealTime(utJDE)*15 longitude := ra - basic.ApparentSiderealTime(utJDE)*15
for longitude > 180 { for longitude > 180 {
longitude -= 360 longitude -= 360