test: 修正日食中心阴影边界测试的时标换算

- 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
2026-10-16 07:52:20 +08:00
parent 044f2f4381
commit 0e3825d5ba
1 changed files with 1 additions and 1 deletions
@@ -169,7 +169,7 @@ func centralShadowBoundaryLines(t *testing.T, feature decodedFeature) [][][2]flo
 func centralShadowSubsolarPoint(value time.Time) (float64, float64) {
 	ttJDE := basic.UTC2TT(basic.Date2JD(value.UTC()))
 	ra, dec := basic.HSunApparentRaDec(ttJDE)
-	utJDE := basic.TT2UTC(ttJDE)
+	utJDE := basic.TT2UT1(ttJDE)
 	longitude := ra - basic.ApparentSiderealTime(utJDE)*15
 	for longitude > 180 {
 		longitude -= 360