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Table: hipparcos2.main
(The bold columns are indexed columns)
Column NameDescriptionDatatype
b_vColour index B - VREAL
dedegDeclination (ICRS) in degreesDOUBLE
deradDeclination in ICRS, Ep=1991.25DOUBLE
e_b_vFormal error on colour index B - VREAL
e_deradFormal error on DEradREAL
e_hpmagError on mean HpmagREAL
e_plxFormal error on PlxREAL
e_pmdeFormal error on pm DEREAL
e_pmraFormal error on pmRAREAL
e_raradFormal error on RAradREAL
elatEcliptic LatitudeDOUBLE
elonEcliptic LongitudeDOUBLE
f1Percentage rejected dataSMALLINT
f2Goodness of fitREAL
glatGalactic LatitudeDOUBLE
glonGalactic LongitudeDOUBLE
hipHipparcos identifierINTEGER
hpmagHipparcos magnitudeREAL
htm9HTM index (order 9 => ~10 arcmin size)INTEGER
icEntry in one of the suppl.cataloguesSMALLINT
ncNumber of componentsSMALLINT
nest4096HEALPIX index (Nsides 4096, Nest schem => ~52 arcsec sizeINTEGER
ntrNumber of field transits usedSMALLINT
plxParallaxREAL
pmdeProper motion in DeclinationDOUBLE
pmraProper motion in Right AscensionREAL
radegRight Ascension (ICRS) in degreesDOUBLE
random_idRandom ID in the range 0.0 => 100.0REAL
raradRight Ascension in ICRS, Ep=1991.25DOUBLE
ring256HEALPIX index (Nsides 256 => ~14 arcmin size)INTEGER
shpScatter of HpmagREAL
snSolution type new reduction
The solution type is a number 10xd+s consisting of two parts d and s:
- s describes the type of solution adopted:
1 = stochastic solution (dispersion is given in the var column)
3 = VIM solution (additional parameters in file hipvim.dat)
5 = 5-parameter solution (this file)
7 = 7-parameter solution (additional parameters in hip7p.dat)
9 = 9-parameter solution (additional parameters in hip9p.dat)
- d describes peculiarities, as a combination of values:
0 = single star
1 = double star
2 = variable in the system with amplitude > 0.2mag
4 = astrometry refers to the photocenter
8 = measurements concern the secondary (fainter) in the double system		SMALLINT
soSolution type old reduction
0 = standard 5-parameter solution
1 = 7- or 9-parameter solution
2 = stochastic solution
3 = double and multiple stars
4 = orbital binary as resolved in the published catalog
5 = VIM (variability-induced mover) solution		SMALLINT
uw_1Upper triangular weight matrix 1: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_10Upper triangular weight matrix 10: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_11Upper triangular weight matrix 11: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_12Upper triangular weight matrix 12: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_13Upper triangular weight matrix 13: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_14Upper triangular weight matrix 14: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_15Upper triangular weight matrix 15: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_2Upper triangular weight matrix 2: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_3Upper triangular weight matrix 3: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_4Upper triangular weight matrix 4: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_5Upper triangular weight matrix 5: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_6Upper triangular weight matrix 6: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_7Upper triangular weight matrix 7: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_8Upper triangular weight matrix 8: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
uw_9Upper triangular weight matrix 9: The upper-triangular weight matrix U is related to the
covariance matrix C by
C^-1^ = ~U U (~U represents transposed U)
The elements U_i_ forming the upper triangular matrix are stored as
 +-                         -+
 |  (1)  (2)  (4)  (7)  (11) |
 |   0   (3)  (5)  (8)  (12) |
 |   0    0   (6)  (9)  (13) |
 |   0    0    0  (10)  (14) |
 |   0    0    0    0   (15) |
 +-                         -+

 on the astrometric parameters RA, Dec, plx, pmRA, pmDE,
 and derivatives of proper motions for 7- and 9-parameter
 solutions.
REAL
v_iV - I colour indexREAL
vaReference to variablity annexSMALLINT
varCosmic dispersion added (stochastic solution)REAL