Table 1: Optical astrometric positions for 59 northern ICRF sources.
Source Optical - ICRF Framesb Mag Epoch (RA, Dec) Reductions
  $\Delta$$\alpha$cos$\delta$ $\Delta$$\delta$ $\sigma_{\alpha}^{a}$ $\sigma_{\delta}^{a}$ per     M.e. $\sigma_{\alpha}$ M.e. $\sigma_{\delta}$ UCAC2
  (mas) (mas) (mas) (mas) source   yrs (mas) (mas) ref. stars
B0003+380 +46 -5 52 73 30 16.2 2004.7702 35 34 5
B0019+058 +15 +35 67 60 23 16.0 2004.7677 29 22 4
B0109+224 -6 +17 27 21 23 14.7 2004.7731 48 61 5
B0119+115 +18 +16 ... ... 1 16.1 2004.7678 38 50 4
B0201+113 +40 -1 84 66 2 16.0 2004.7679 12 2 4
B0202+319 +34 -43 37 41 24 16.3 2004.7652 70 61 8
B0237+040 -32 +66 44 51 18 16.3 2004.7706 39 64 5
B0309+411 -48 -35 50 62 26 15.9 2005.1094 38 44 17
B0317+188 -28 -3 90 58 8 16.2 2004.7654 24 30 8
B0319+121 +41 -2 72 70 8 16.4 2004.7680 64 46 4
B0333+321 +102 -64 45 49 17 15.5 2005.1040 22 32 7
B0400+258 +20 -13 93 121 7 16.7 2004.7707 36 50 9
B0422+004 -22 -52 19 18 30 15.2 2005.1013 56 38 5
B0425+048 -29 +59 ... ... 1 16.0 2005.1041 66 29 5
B0430+052 -103 -55 23 23 35 14.9 2005.1068 117 27 4
B0457+024 +86 -86 ... ... 1 15.7 2005.1014 60 67 8
B0502+049 +4 +21 87 100 12 15.6 2005.0986 58 84 6
B0507+179 +142 +114 ... ... 1 15.7 2005.1095 25 51 13
B0528+134 +22 -56 50 55 36 15.7 2005.1096 30 64 8
B0552+398 +0 +79 53 39 29 16.0 2005.7867 49 46 18
B0657+172 -59 -52 ... ... 1 15.8 2005.0986 43 52 29
B0735+178 -61 +6 17 25 40 14.8 2005.0988 30 38 9
B0736+017 -22 -42 24 35 18 15.3 2005.1016 51 46 11
B0738+313 +40 +32 27 24 39 15.6 2005.1072 59 64 5
B0743+259 -102 +55 ... ... 1 15.9 2005.1017 17 29 7
B0745+241 -13 -46 57 84 15 15.4 2005.1045 33 48 11
B0748+126 +57 +41 50 69 36 15.7 2005.1071 42 41 13
B0754+100 -82 +68 22 26 24 15.4 2005.1018 40 46 14
B0808+019 +99 +135 33 2 2 15.3 2005.0989 47 44 13
B0823+033 -29 -127 ... ... 1 14.8 2005.1046 42 42 4
B0827+243 +17 +27 64 63 34 15.4 2005.1072 35 39 5
B0851+202 +33 -16 27 14 30 15.0 2005.0989 53 42 7
B0906+015 -53 +6 114 52 4 14.8 2005.1047 30 56 10
B0953+254 +21 +72 39 34 4 15.7 2005.1101 128 51 4
B0955+326 -58 +91 17 25 20 15.3 2005.1048 27 57 5
B1004+141 -18 -58 ... ... 1 14.7 2005.0991 72 20 4
B1012+232 +87 -122 ... ... 1 15.3 2005.1074 48 48 6
B1038+064 +2 -14 64 48 23 15.6 2005.1021 21 41 4
B1055+018 -29 -32 56 61 38 16.0 2005.1075 102 58 4
B1633+382 +16 +12 44 36 10 16.4 2005.5066 72 46 6
B1717+178 -24 +21 66 60 19 15.7 2005.4991 49 64 10
B1725+044 +59 +21 63 85 16 15.4 2005.4989 46 43 14
B1732+389 -21 +22 87 70 4 15.4 2005.4990 13 10 4
B1749+096 +6 -24 16 26 25 15.9 2005.5067 48 45 14
B1751+288 +46 +81 40 53 17 16.4 2005.5068 63 54 8
B1758+388 +78 +41 25 51 25 16.2 2005.5068 55 57 7
B1821+107 +41 +91 61 28 5 15.4 2004.7754 43 55 27
B1830+285 -7 +15 44 61 27 15.7 2005.4992 54 48 17
B2029+121 +73 -37 54 64 35 15.7 2004.7701 40 57 18
B2059+034 -92 +36 22 68 24 16.2 2005.5070 59 44 7
B2121+053 -3 +19 59 77 12 16.2 2004.7649 54 64 6
B2134+004 +2 +94 56 31 6 15.5 2005.7804 56 60 6
B2136+141 -1 -21 62 68 23 16.1 2004.7674 42 67 12
B2150+173 +79 +111 97 38 2 16.2 2004.7728 47 47 13
B2200+420 +10 +32 14 22 32 14.3 2004.7728 48 48 18
B2209+236 -25 -68 45 46 2 16.2 2004.7648 63 38 10
B2253+417 +5 -26 67 82 13 16.1 2004.7700 37 34 18
B2318+049 -13 -34 48 102 3 16.0 2004.7623 9 21 4
B2319+272 -15 +12 34 35 33 16.1 2004.7675 65 32 6
average +6 +7 50 51 17 15.7 2004.7687 47 46 9
standard deviation 51 57 24 25 13 0.5 0.0033 22 15 6
$\textstyle \parbox{16cm}{ $^{a}$\space Standard deviation about the mean from individual frame positions.\\ $^{b}$\space Frames taken for mean position.}$


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