| Table 3 - Image Analysis of the Umbra | |||||||||
| Using *. PICT images captured by a MASS QuickImage 24 Frame Grabber | |||||||||
| and measured size of the umbra in degrees, with Image Analyst | |||||||||
| Measured Fi | |||||||||
| Date | Near | Near | Near | Near | Near | F2 | Sc | Comments | |
| 1C | 2 C | Mid | 3 C | 4 C | |||||
| 1995 Apr 15 | 0.41 | - | 0.61 | - | 0.45 | 0.753 | 0.271 | partial | |
| 1996 Apr 4 | 0.52 | - | 0.65 | - | 0.698 | 0.259 | partial | ||
| 2001 Jan 9 | - | 0.72 | - | 0.58 | 0.52 | 0.767 | 0.274 | total | |
| 2003 May 16 | 0.27 | 0.63 | - | - | - | 0.774 | 0.273 | total | |
| 2003 Nov 9 | 0.41 | 0.61 | 0.61 | 0.41 | 0.646 | 0.241 | total | ||
| 2004 May 4 | 0.46 | 0.54 | 0.45 | 0.56 | - | 0.763 | 0.272 | total,digital images | |
| 2004 Oct 28 | 0.45 | 0.55 | - | 0.35 | 0.51 | 0.679 | 0.252 | total | |
| mean | 0.42 | 0.61 | 0.57 | 0.52 | 0.47 | 0.73 | 0.26 | ||
| Legend for Table 3 | |||||||||
| Measured Fi is the umbral semi-diameter measured with Image Analyst | |||||||||
| Near 1C is the measured value near the time of first contact, etc | |||||||||
| F2 is the constant value of the expected umbral semi-diameter | |||||||||
| Sc is the semi-diameter of the Moon, used to calibrate measured images | |||||||||
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