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Hipparcos and Tycho
Catalogues: Errors
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On this page we are maintaining a listing of all reported errors
affecting the printed catalogue (including documentation), CD-ROMs,
or access software. In addition we will note updates to the catalogues
based on new research.
Errors in the catalogue documentation
- Volume 1, page 99, Equation 1.5.76: for direct application to the covariance
matrix, C, derived from the HIP/TYC catalogues (in units of mas*mas for
the relevant elements) the first two columns of the Jacobian matrix should
be converted from units of pc/radian to pc/mas by multiplying with sin(1
mas);
- Volume 1, page 455: Lutz-Kelker reference should be to PASP, not MNRAS;
- Volume 2, page 233, Table 12.3: temperatures in degrees Celsius (not K).
- Volume 10, page DO4, Reference 60: the reference to Latham et al. should
be to Astron.J., 1992 (it is given correctly in the ASCII
CD-ROMs). [This is a reference to the adopted ground-based orbital
elements for HIP81023.]
- Volume 11: in the photometric references section (page PA11):
references 94.193 and 94.211 are quoted, although the corresponding
references are not given: these references should have been omitted
altogether [June 1997].
- Volume 11: reference 95.503 (in the photometric references, page
PA4) should point to page 289 (not 389). This concerns the following
HIP numbers: 39429, 39953, 45467, 48617, 52308, 52488, 52558, 53461,
54283, 82775, 86624, 88469, 89956, 89963, 100044. [January
1998].
- Volume 11: In the section on "Spectral Types for Hipparcos
Catalogue Entries" the luminosity for two entries are incorrect:
- HIP 85069 should be B9/B9.5II/III (page SP138 of Volume 11)
- HIP 90062 should be B0/B0.5II/III (page SP146 of Volume 11)
- Volume 11: the entry for HIP 48662 (page PN47) which queries a
misidentification with X Vel due to incompatible measured and
historic measurements can be ignored. (Hipparcos measured magnitudes
are in the range [6.525,6.969], the literature B magnitudes are
quoted as 10.30 to 11.53, B-V is given as 3.76 magnitudes, thus the
Hipparcos measurements are probably compatible with the literature.)
[Communicated by Bill Owen, January 2000]
Errors in the data files (printed and/or CD-ROM)
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Six records in the Hipparcos Transit Data file (CD-ROM disk 6, file
cats/hip_j.dat) contain errors caused by format overflow in the
Fortran program originally generating the file. The corresponding
fields thus contain asterisks instead of the intended numerical
data. This may cause an error when attempting to read these
records. A description of the errors and the correct data is
available here.
- The luminosity (field H76) for two entries are incorrect on the ASCII CD-ROM:
- HIP 85069 should be B9/B9.5II/III
- HIP 90062 should be B0/B0.5II/III
- In the photometric references: reference 95.503 should point to
page 289 (not 389). This concerns the following HIP numbers: 39429,
39953, 45467, 48617, 52308, 52488, 52558, 53461, 54283, 82775, 86624,
88469, 89956, 89963, 100044. [January 1998].
- Disk 1: tocvol2.pdf/a_conts.pdf (page x) and
tocvol4.pdf/a_conts.pdf (page x) are corrupted [traced to ps-to-pdf
distillation, 3 July 1997].
- In DMSA field DO16, the reference to Latham et al. should be to
Astron.J., 1992 (it is given correctly in the ASCII CD-ROMs). [This is
a reference to the adopted ground-based orbital elements for HIP81023.]
- In the Photometric note (H70=P), the entry for HIP 48662 which queries a
misidentification with X Vel due to incompatible measured and
historic measurements can be ignored. (Hipparcos measured magnitudes
are in the range [6.525,6.969], the literature B magnitudes are
quoted as 10.30 to 11.53, B-V is given as 3.76 magnitudes, thus the
Hipparcos measurements are probably compatible with the literature.)
[Communicated by Bill Owen, January 2000]
Errors/updates in the access software on disk
1 (src, fits)
- The released version of the search routine shipdm (combined index
search on HIP for DMSA Parts C-X) crashes for the following HIP
numbers (which correspond to the second solution within a CCDM
system - note that the corresponding search on CCDM number using
shipdmc works correctly):
5842 13308 13769 26235 26500 27000 39606 40927 42543 52438
54976 70111 80461 81363 91926 101801 110541 110766 113225
To fix this, edit the file hip_dm_c.c. Replace line 143 which reads:
finished=(toprec->DCM1.value == i);
with:
finished=(toprec->DCM1.value == toprec->DC2.value );
save the file and recompile all the sources by typing `make' [20 October 1997]
Updates to catalogue entries (based on recent research)
- Field H56: the following HIP entries with flag `H' (i.e. considered
previously unknown as double/multiple) should now be considered as
flag `M', as reported by C.E. Worley (USNO), October 1997:
HIP: 6216, 7120, 10885, 16920, 23904, 24398, 27309, 30200, 34524,
48504, 56048, 63688, 72736, 83948, 98645, 99857, 107533, 112422.
- HIP 114110 (observed with 114113) and HIP 114176 (observed
with 114177) are noted as probable measurements of scattered
light from a nearby bright star. The non-reality of 114110 and 114176
(traced to fictitious entries in the WDS and INCA) has been confirmed by MMT
observations reported by D. Latham (private communication, 8 May 1998),
and confirmed by inspection of the DSS (J.L. Falin, 12 May 1998).
Celestia 2000 updates
Celestia 2000 updated software is available on the anonymous ftp area
at astro.estec.esa.nl in directory pub/hipparcos/celestia. Read the
README note in that directory for further information.
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This page is maintained by M.A.C. Perryman
(Astrophysics Division - SSD)
Last modified: Thu Sep 23 13:13:34 MEST 2004
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