Six records in the Hipparcos Transit Data file (CD-ROM disk 6, cats/hip_j.dat) contain format overflow errors. These errors, and the correct values, are given below. Note that hip_j.dat is a formatted (text) file with a fixed record length of 125 characters plus CR+LF (127 bytes in all). Information for each of the six affected records are given below, separated by dashes. Between the dashes there are three lines: 1. The first line contains three numbers: (1) the HIP number of the object affected, (2) the sequential number of the erroneous data record within the data set relevant for that object (with 0 = pointing record, 1 = first transit record, etc) (3) the record number in the file. 2. The second line is the erroneous data record 3. The third line gives the correct data positioned under the field where the overflow occurred. Example: the first error occurred in record number 1670843 of the file hip_j.dat, which is the pointing record for HIP 46586. The field JP3 (offset in Dec for target position 1) should be 1308 (arcsec). Note: In the five cases where there is an overflow in the pointing record, the offset (of the IDT position from the reference point) is at least 100 arcsec. It is not probable that such a record contains useful data. For the star HIP 48036, where the overflow occurred in the field JT14 (ln sigma_4) of one of the transit records, the data are however perfectly good. ----------------------------------------------------------------------------------------------------------------------------- 46586 0 1670843 1|-29|***|1| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0 1308 ----------------------------------------------------------------------------------------------------------------------------- 48036 22 1729717 1|-1.2598539| 162566| 1060959| -168936| 2.298| .5271| -.5515| .0008| -.1350|-3.07|-3.80|-3.75|*****|-5.16|1.77|6.90| .8|0 -10.00 ----------------------------------------------------------------------------------------------------------------------------- 99819 0 3663101 1| 1| 0|1| 23|***|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0 -105 ----------------------------------------------------------------------------------------------------------------------------- 101043 0 3710614 1|***|175|1| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0 -157 ----------------------------------------------------------------------------------------------------------------------------- 116191 0 4269057 1|***|-97|1| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0 -204 ----------------------------------------------------------------------------------------------------------------------------- 117011 0 4298909 1| 51|***|1| 52|***|1| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0|0| 0| 0 -234 -234 -----------------------------------------------------------------------------------------------------------------------------