Question 2 Given The Following Astronomy Dataset With Measurem Radio Telescope Objectname Ra Dec S20 Err20 S8 Err8 Jo00 1 (75.83 KiB) Viewed 30 times
Question 2 Given the following astronomy dataset with measurem radio telescope: objectname ra dec S20 err20 S8 err8 JO0012- 00:12.8-85:39:19.9 98 5 63 4 853919 JO0020- 00:20.4 -32:21:01.2 118 6 315 16 322101 J00105- 01:05.4-15:51:07.2 297|19 155107 J00106- 01:06.3 -17:41:26.2 73 9 074626 J00118- 01:18.0-07:46:26.8 175 < 4 074626 JO0125- 01:25.6 -06:56:24.9 51 7 295 15 065624 JO0252- 02:52.9-59:48:14.0 71 < 3 64 5 594814 JO0253- 03:03.5-55:30:07.1 44 5 52-1 562110 I I
objectname is the unique identifier of different celestial objects which are surveyed; ra and dec are the coordinates of the surveyed object on the sky (ra: right ascension; dec: declination - negative values here indicate objects visible on the southern hemisphere); the other attributes (S20, err20, S8, and err8) are the measured signal intensities in different frequency bands (S20 and S8) and the corresponding error of the measurement (err20 and err8). All measurements and errors should show only of positive values. Assume that you get this data as a tab-delimited CSV file. Name three problems when trying to import this dataset into a relational database and briefly explain how you would solve each of these problems. Edit View Insert Format Tools Table 12pt ✓ Paragraph ✓
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