| 3C273-20200325-S001-R001-B-000512.fts |
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| Only less than 50 stars was detected |
| 3C273-20200325-S001-R001-I-000904.fts |
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| Only less than 50 stars was detected |
| 3C273-20200325-S001-R001-R-000748.fts |
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| Only less than 50 stars was detected |
| 3C273-20200325-S001-R001-V-000631.fts |
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| Only less than 50 stars was detected |