Proper motion differences between catalogs.

Explanation

PM / PM error

PPMXL
URAT1
UCAC4
Tycho
Gaia
UCAC5
N: 261,418,297
μ PMe: 9.3275e-11
σ PMe: 0.055172
N: 29,024,331
μ PMe: 7.1845e-10
σ PMe: 0.022448
N: 108,295,887
μ PMe: 8.9564e-11
σ PMe: 0.081924
N: 2,430,389
μ PMe: 2.8538e-08
σ PMe: 0.16365
N: 2,028,354
μ PMe: 1.9222e-07
σ PMe: 2.8141
N: 101,376,360
μ PMe: 2.9508e-09
σ PMe: 0.51405

Catalog to catalog proper motion variation

PPMXL
URAT1
UCAC4
Tycho
Gaia
UCAC5
PPMXL N: 455,327
μ RA: 0.11076
σ RA: 7.2908
μ Dec: 0.066467
σ Dec: 9.1411
μ Err: 0.0049041
σ Err: 1.0851
N: 1,736,116
μ RA: 0.027275
σ RA: 10.912
μ Dec: 0.0059139
σ Dec: 13.294
μ Err: -0.93626
σ Err: 16.706
N: 113,530
μ RA: 0.1206
σ RA: 1.1618
μ Dec: -0.0040019
σ Dec: 1.8858
μ Err: -0.001816
σ Err: 0.85987
N: 11,353
μ RA: -0.053354
σ RA: 3.7272
μ Dec: -0.044874
σ Dec: 3.8549
μ Err: 0.019537
σ Err: 2.021
N: 1,066,147
μ RA: -0.059226
σ RA: 14.021
μ Dec: 0.024155
σ Dec: 15.417
μ Err: -0.12936
σ Err: 7.1288
URAT1 N: 318,367
μ RA: -0.013129
σ RA: 7.863
μ Dec: 0.78328
σ Dec: 8.5033
μ Err: 18.058
σ Err: 2.7729
N: 14,190
μ RA: 0.034631
σ RA: 5.6129
μ Dec: 0.0097414
σ Dec: 6.2481
μ Err: 0.082342
σ Err: 2.6818
N: 35,700
μ RA: 0.039331
σ RA: 5.106
μ Dec: 0.0092941
σ Dec: 5.383
μ Err: 0.014272
σ Err: 3.8523
N: 1,717,483
μ RA: 0.13547
σ RA: 6.6896
μ Dec: 0.026035
σ Dec: 7.1453
μ Err: 0.0090418
σ Err: 5.2391
UCAC4 N: 93,206
μ RA: 0.10918
σ RA: 2.1461
μ Dec: -0.016437
σ Dec: 2.7367
μ Err: -0.89672
σ Err: 16.974
N: 14,066
μ RA: 0.029255
σ RA: 3.1372
μ Dec: -0.0019906
σ Dec: 3.1711
μ Err: -3.8803
σ Err: 17.625
N: 1,578,165
μ RA: -0.0087501
σ RA: 9.8705
μ Dec: -0.098726
σ Dec: 12.027
μ Err: -1.5957
σ Err: 22.726
Tycho N: 10,435
μ RA: -0.00047053
σ RA: 3.6622
μ Dec: -0.018931
σ Dec: 3.7516
μ Err: 0.029108
σ Err: 2.3963
N: 14,233
μ RA: 0.031772
σ RA: 3.4405
μ Dec: 0.037926
σ Dec: 4.2876
μ Err: -0.19755
σ Err: 3.5475
Gaia N: 1,760,653
μ RA: -0.0093335
σ RA: 2.2188
μ Dec: -0.020166
σ Dec: 3.5007
μ Err: -0.097956
σ Err: 2.0785