ドリフトチャート (2020 Apparition - mid-NEB/NEBZ)

Color +9° white marking +10° white marking +11° white marking +12° white marking
+13° white marking +14° white marking ≥+15° white marking
Shape center p. end f. end
NEBW1 NEBW2 NEBW2 NEBW3 NEBW4 NEBW4 NEBW5 NEBW5 NEBW6 NEBW6 NEBW7 NEBW7 NEBW8 NEBW8 NEBW9

特殊経度(体系IIに対して-3.0°/day)によるドリフトチャート

Color +9° white marking +10° white marking +11° white marking +12° white marking
+13° white marking +14° white marking ≥+15° white marking
Shape center p. end f. end
NEBW1 NEBW1 NEBW2 NEBW2 NEBW3 NEBW4 NEBW5 NEBW5 NEBW6 NEBW7 NEBW8 NEBW9

自転周期

模様記号期間自転周期ドリフト測定数観測期間観測経度緯度衝の経度風速(m/s)
NEBZ white spotNEBW19h55m35.6s±0.9s-0.123±0.023632020/04/24－2020/09/12101.7－78.8+15.1±0.991.3±1.6-2.0±0.3
NEBZ white spotNEBW29h54m36.7s±1.2s-1.559±0.029412020/08/01－2020/10/0849.5－304.4+13.9±0.578.3±1.0+18.1±0.4
NEBZ white spotNEBW39h54m35.3s±3.0s-1.594±0.073282020/08/12－2020/09/14164.2－109.0+13.9±0.5210.1±1.2+18.6±1.0
NEBZ white spotNEBW49h54m35.8s±3.1s-1.581±0.075242020/09/12－2020/11/02118.5－35.3+14.0±0.9212.1±1.9+18.4±1.1
NEBZ white spotNEBW59h54m51.8s±2.4s-1.190±0.059462020/08/11－2020/10/1355.0－341.9+14.4±0.790.3±1.9+12.9±0.8
NEBZ white spotNEBW69h54m43.3s±3.6s-1.397±0.089352020/08/10－2020/09/2871.7－3.3+14.1±0.7113.4±2.2+15.8±1.2
NEBZ white spotNEBW79h54m33.7s±2.8s-1.632±0.069142020/09/09－2020/10/0542.3－0.1+14.0±0.6136.8±0.9+19.1±1.0
NEBZ white spotNEBW89h54m17.3s±2.8s-2.034±0.069642020/07/20－2020/11/215.7－96.0+13.2±0.710.8±4.3+24.9±1.0
NEBZ white spotNEBW99h53m51.3s±1.9s-2.670±0.046342020/07/22－2020/09/15329.1－178.0+12.8±0.5349.9±1.3+33.9±0.6