“ObjID”的版本间差异
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DR7之前和DR8之后的定义方式似乎不太一样 |
DR7之前和DR8之后的定义方式似乎不太一样 |
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* |
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*DR8 |
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The bits are assigned in objid as follows: |
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:63: 0, unassigned |
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:59-62: skyVersion resolved sky version (for DR8 onlyuse 2; 0-15 available) |
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:48-58: rerun, number of pipeline rerun |
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:32-47: run, run number |
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:29-31: camcol, camera column (1-6) |
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:28: 0, unassigned |
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:16-27: field, field number within run |
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:0-15: id, object number within field |
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2014年12月21日 (日) 09:34的版本
DR7之前和DR8之后的定义方式似乎不太一样
- DR8
The bits are assigned in objid as follows:
- 63: 0, unassigned
- 59-62: skyVersion resolved sky version (for DR8 onlyuse 2; 0-15 available)
- 48-58: rerun, number of pipeline rerun
- 32-47: run, run number
- 29-31: camcol, camera column (1-6)
- 28: 0, unassigned
- 16-27: field, field number within run
- 0-15: id, object number within field