Summary of differences in arcseconds
Green means < 10 milli-arcsec, orange < 1 arcsec and red > 1 arcsec
| Tool 1 | Tool 2 | Median | Mean | Max | Std. Dev. |
|---|---|---|---|---|---|
| astropy | casa | 0.628569 | 2.353126 | 12.666443 | 3.811184 |
| astropy | pyast | 4.493746 | 4.845908 | 9.765197 | 2.768175 |
| astropy | pyephem | 4.713086 | 5.464836 | 12.965994 | 3.484395 |
| astropy | skyfield | 0.001551 | 1.299845 | 8.340911 | 2.725876 |
| casa | pyast | 3.400792 | 3.813633 | 9.622002 | 2.441991 |
| casa | pyephem | 3.320928 | 3.526254 | 10.207578 | 2.829381 |
| casa | skyfield | 0.628495 | 1.057411 | 4.415970 | 1.119046 |
| pyast | pyephem | 0.858755 | 1.107748 | 3.826224 | 0.844204 |
| pyast | skyfield | 3.275504 | 3.551012 | 9.768754 | 2.741279 |
| pyephem | skyfield | 3.663951 | 4.168958 | 10.593121 | 2.584348 |