ength of day (LOD) LOD Difference of day from 8640 1850.0 2000.0 12540Lec04 Recent LOD LOd= Difference of day from 86400 seconds 置 19920 1994.0 200208 02/18/03 12.540 Lec 04 15 Length of day (LOD) -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 1800.0 1850.0 1900.0 1950.0 2000.0 LOD = Difference of day from 86400. seconds LOD (ms) LOD (ms) LOD (ms) Year 02/18/03 12.540 Lec 04 16 Recent LOD -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 1992.0 1994.0 1996.0 1998.0 2000.0 2002.0 LOD = Difference of day from 86400. seconds LOD (ms) LOD (ms) LOD (ms) Year