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Instructions
1. Use group 1 and group 2 data to estimate the orbital period.
2. Use the period to compare the two groups more precisely.
3. If the results in part 2 look good, use the same period to compare the next group of data; if not, change the period and try again.
4. Keep repeating the procedure with more data groups, until you have a period which fits all the data.
| Radial Velocity Data for HD15144 |
| JD - 2,440,000 |
Vr (km/sec) |
Group |
1257.930
1258.933 |
-17.7
+16.1 |
5 |
1582.919
1584.960 |
+19.7
- 9.5 |
6 |
| 1697.732 |
- 0.3 |
6 |
| 2001.941 |
- 0.6 |
6 |
| 2319.943 |
+ 7.9 |
6 |
2615.096
2616.113
2617.109
2618.103 |
- 1.8
-13.0
+18.6
- 1.9 |
1 |
2676.930
2677.999
2679.069
2680.014 |
+15.8
+ 0.6
-12.0
+17.6 |
2 |
3109.818
3110.879
3111.926 |
- 5.1
- 8.6
+20.6 |
3 |
4503.043
4503.968
4505.007
4506.038 |
+20.5
- 8.8
- 2.4
+21.7 |
4 |
|
