Notes: (1) ICRF Designations, constructed from J2000.0 coordinates with the format ICRF JHHMMSS.s+DDMMSS or ICRF JHHMMSS.s-DDMMSS They follow the recommendations of the IAU Task Group on Designations. (2) IERS Designations, previously constructed from B1950 coordinates. The complete format, including acronym and epoch in addition to the coordinates, is IERS BHHMM+DDd or IERS BHHMM-DDd (3) c: Category of the source: [D]efining, [C]andidate, [O]ther X: Structure index at X band S: Structure index at S band H: Asterisk indicates that the source serves to link the Hipparcos stellar reference frame to the ICRS. (4) Number of pairs of delay and delay rate observations. Coordinates of the other sources in ICRF --------------------------------------------------------------------------------------------------------------------------------------------- ICRF Designation IERS Des. Inf. Right Ascension Declination Uncertainty Mean First Last Nb Nb (1) (2) (3) J2000.0 J2000.0 R.A. Dec. MJD MJD MJD sess. del. X S H h m s o ' " s " of observation span (4) --------------------------------------------------------------------------------------------------------------------------------------------- ICRF J001945.7+732730 0016+731 2 1 0 19 45.786433 73 27 30.01751 0.000093 0.00039 48894.7 47165.8 49750.8 411 21652 ICRF J002232.4+060804 0019+058 0 22 32.441263 6 8 4.26943 0.000172 0.00351 49127.9 47394.1 49790.7 18 51 ICRF J002914.2+345632 0026+346 4 4 0 29 14.242502 34 56 32.24702 0.000312 0.00248 49382.7 47011.4 49820.5 12 201 ICRF J005041.3-092905 0048-097 1 1 0 50 41.317392 - 9 29 5.21022 0.000037 0.00090 49249.2 44773.8 49924.8 374 9641 ICRF J010245.7+582411 0059+581 2 1 1 2 45.762387 58 24 11.13669 0.000046 0.00038 49501.0 48720.9 49924.8 244 31138 ICRF J010645.1-403419 0104-408 1 6 45.107969 -40 34 19.96036 0.000150 0.00259 49399.7 47511.1 49917.8 116 719 ICRF J010838.7+013500 0106+013 1 8 38.771070 1 35 0.31714 0.000079 0.00214 46746.8 44447.0 49897.8 1204 24158 ICRF J011612.5-113615 0113-118 1 16 12.521959 -11 36 15.43371 0.000103 0.00293 48898.9 47176.5 49600.3 28 92 ICRF J013741.2+330935 0134+329 * 1 37 41.299454 33 9 35.13378 0.000194 0.00650 48597.5 48194.7 49667.9 10 64 ICRF J021046.2-510101 0208-512 2 10 46.200412 -51 1 1.89187 0.000105 0.00128 49152.9 47305.8 49911.8 166 1871 ICRF J021730.8+734932 0212+735 2 2 2 17 30.813365 73 49 32.62180 0.000118 0.00049 47445.3 44857.8 49600.3 1304 42970 ICRF J024008.1-230915 0237-233 4 3 2 40 8.174536 -23 9 15.73288 0.000407 0.00752 49347.5 48126.7 49662.8 19 244 ICRF J024104.7-081520 0238-084 4 2 2 41 4.798520 - 8 15 20.75174 0.000056 0.00290 49625.2 47176.5 49917.8 38 378 ICRF J030335.2+471616 0300+470 2 1 3 3 35.242225 47 16 16.27549 0.000047 0.00057 48144.6 45138.8 49736.9 736 23188 ICRF J031948.1+413042 0316+413 * 3 19 48.160106 41 30 42.10328 0.000182 0.00380 46427.5 44090.5 49751.9 195 5784 ICRF J032153.1+122113 0319+121 3 21 53.103501 12 21 13.95380 0.000068 0.00148 48586.6 47019.9 49790.7 12 144 ICRF J032957.6+275615 0326+277 * 3 29 57.669425 27 56 15.49901 0.000138 0.00210 48673.3 47165.8 49694.8 24 108 ICRF J033413.6-400825 0332-403 3 34 13.654484 -40 8 25.39779 0.000142 0.00163 48667.0 47640.2 49790.7 15 72 ICRF J033630.1+321829 0333+321 3 36 30.107611 32 18 29.34237 0.000068 0.00117 48549.1 44773.8 49576.9 73 424 ICRF J034035.6-211931 0338-214 3 40 35.607839 -21 19 31.17150 0.000097 0.00072 48292.6 46875.8 49629.6 4 34 ICRF J035929.7+505750 0355+508 3 59 29.747263 50 57 50.16149 0.000146 0.00142 46522.7 44090.5 49771.8 509 14647 ICRF J040353.7-360501 0402-362 4 3 53.749905 -36 5 1.91299 0.000142 0.00247 48953.0 47415.7 49924.8 104 445 ICRF J040534.0-130813 0403-132 4 5 34.003421 -13 8 13.69129 0.000052 0.00149 48959.3 47176.5 49650.8 3 43 ICRF J040820.3+303230 0405+304 * 4 8 20.377574 30 32 30.49043 0.000201 0.00512 49508.6 49177.8 49690.0 8 56 ICRF J042315.8-012033 0420-014 3 1 * 4 23 15.800726 - 1 20 33.06524 0.000051 0.00116 48071.3 44773.8 49895.6 1289 28507 ICRF J043311.0+052115 0430+052 4 3 * 4 33 11.095560 5 21 15.61961 0.000117 0.00261 46766.3 44090.5 49542.2 51 679 ICRF J043701.4-184448 0434-188 4 37 1.482726 -18 44 48.61337 0.000095 0.00212 48633.6 46875.8 49861.8 120 478 ICRF J045703.1-232452 0454-234 2 1 4 57 3.179223 -23 24 52.01989 0.000065 0.00158 48881.0 46440.9 49924.8 1090 15911 ICRF J050321.1+020304 0500+019 5 3 21.197194 2 3 4.67555 0.000097 0.00328 48702.4 47394.1 49848.8 13 92 ICRF J053007.9-250329 0528-250 5 30 7.962815 -25 3 29.89975 0.000113 0.00122 48755.0 47512.0 49650.8 12 72 ICRF J053850.3-440508 0537-441 3 1 * 5 38 50.361540 -44 5 8.93895 0.000126 0.00216 49238.2 47305.8 49911.8 266 2098 ICRF J053942.3+143345 0536+145 1 1 5 39 42.365997 14 33 45.56181 0.000061 0.00286 48975.3 47605.1 49667.9 32 78 ICRF J071338.1+434917 0710+439 4 3 7 13 38.164136 43 49 17.20702 0.000120 0.00272 49264.0 48179.7 49611.9 23 307 ICRF J071424.8+353439 0711+356 7 14 24.817575 35 34 39.79350 0.000131 0.00223 48238.8 45466.3 49667.9 13 131 ICRF J073019.1-114112 0727-115 2 1 7 30 19.112468 -11 41 12.60041 0.000043 0.00105 48776.5 45259.2 49924.8 1384 32167 ICRF J073807.3+174218 0735+178 * 7 38 7.393745 17 42 18.99829 0.000039 0.00056 49065.8 44773.8 49750.8 503 12686 ICRF J074533.0+101112 0742+103 4 1 7 45 33.059509 10 11 12.69254 0.000049 0.00108 48006.6 44773.8 49820.5 316 6712 ICRF J074554.0-004417 0743-006 2 1 7 45 54.082299 - 0 44 17.53921 0.000105 0.00284 47387.2 45997.8 49694.8 25 198 ICRF J092129.3-261843 0919-260 3 2 9 21 29.353871 -26 18 43.38615 0.000128 0.00339 49223.8 46840.8 49911.8 187 2389 ICRF J092703.0+390220 0923+392 2 1 9 27 3.013906 39 2 20.85196 0.000042 0.00047 48039.2 44090.5 49924.8 2185 96427 ICRF J095533.1+690355 0951+693 9 55 33.173011 69 3 55.06104 0.000215 0.00089 49464.9 49141.8 49917.8 10 397 ICRF J095649.8+251516 0953+254 2 1 9 56 49.875356 25 15 16.04963 0.000043 0.00060 49232.2 44447.0 49909.6 250 5878 ICRF J100741.4+135629 1004+141 3 2 10 7 41.498082 13 56 29.60073 0.000050 0.00104 49254.9 47011.4 49904.8 21 317 ICRF J102429.5-005255 1021-006 10 24 29.586611 - 0 52 55.49786 0.000119 0.00244 49253.9 48664.8 49690.0 9 97 ICRF J103716.0-293402 1034-293 1 1 10 37 16.079728 -29 34 2.81318 0.000107 0.00242 48768.6 46440.9 49911.8 620 5639 ICRF J104806.6-190935 1045-188 10 48 6.620574 -19 9 35.72656 0.000084 0.00173 48683.5 47176.5 49629.6 3 18 ICRF J105829.6+013358 1055+018 10 58 29.605209 1 33 58.82372 0.000052 0.00182 47703.2 44773.8 49662.8 266 4021 ICRF J110708.6-444907 1104-445 11 7 8.694143 -44 49 7.61841 0.000152 0.00247 49113.9 47626.5 49911.8 216 1478 ICRF J112553.7+261019 1123+264 11 25 53.711931 26 10 19.97862 0.000067 0.00112 48715.5 46977.9 49848.8 147 1120 ICRF J114658.2+395834 1144+402 11 46 58.297906 39 58 34.30461 0.000078 0.00116 47065.9 45138.8 49662.8 138 2084 ICRF J122906.6+020308 1226+023 * 12 29 6.699728 2 3 8.59824 0.000119 0.00284 46610.7 44090.5 49751.9 1120 27264 ICRF J125611.1-054721 1253-055 12 56 11.166507 - 5 47 21.52481 0.000111 0.00300 47337.9 44090.5 49882.8 242 4321 ICRF J130252.4+574837 1300+580 1 1 13 2 52.465276 57 48 37.60941 0.000069 0.00075 49830.6 49422.9 49897.8 14 874 ICRF J133739.7-125724 1334-127 2 1 13 37 39.782777 -12 57 24.69308 0.000054 0.00130 48947.4 46840.8 49924.8 1080 23245 ICRF J135704.4+191907 1354+195 13 57 4.436658 19 19 7.37228 0.000057 0.00131 47372.1 44447.0 49692.6 103 1482 ICRF J140700.3+282714 1404+286 3 1 * 14 7 0.394410 28 27 14.68993 0.000051 0.00111 47270.8 44342.2 49694.8 1180 33641 ICRF J141558.8+132023 1413+135 1 3 14 15 58.817491 13 20 23.71254 0.000088 0.00260 48463.5 45138.8 49848.8 29 107 ICRF J142756.2-420619 1424-418 14 27 56.297557 -42 6 19.43749 0.000165 0.00285 48891.8 47305.8 49909.6 182 934 ICRF J145907.5+714019 1458+718 3 3 14 59 7.583954 71 40 19.86799 0.000188 0.00092 49543.4 48194.7 49820.5 10 417 ICRF J150424.9+102939 1502+106 2 1 15 4 24.979782 10 29 39.19865 0.000050 0.00137 48080.2 44447.0 49662.8 603 12485 ICRF J151250.5-090559 1510-089 3 1 15 12 50.532937 - 9 5 59.82948 0.000064 0.00181 48546.6 44773.8 49895.6 312 3756 ICRF J155035.2+052710 1548+056 15 50 35.269244 5 27 10.44822 0.000046 0.00103 47546.1 44773.8 49692.6 258 5739 ICRF J160913.3+264129 1607+268 4 4 16 9 13.320772 26 41 29.03661 0.000091 0.00206 49315.3 44090.5 49820.5 10 247 ICRF J161749.2-771718 1610-771 16 17 49.276341 -77 17 18.46743 0.000239 0.00092 49185.0 47626.5 49911.8 144 1849 ICRF J162546.8-252738 1622-253 1 1 16 25 46.891640 -25 27 38.32671 0.000081 0.00205 48907.5 46840.8 49924.8 750 10193 ICRF J163515.4+380804 1633+382 3 1 16 35 15.492972 38 8 4.50061 0.000061 0.00069 47914.7 44447.0 49924.8 456 13175 ICRF J164029.6+394646 1638+398 1 1 16 40 29.632774 39 46 46.02854 0.000031 0.00039 49368.5 45322.5 49924.8 233 14985 ICRF J164258.8+394836 1641+399 * 16 42 58.809950 39 48 36.99399 0.000091 0.00104 46595.1 44090.5 49771.8 1145 42754 ICRF J171913.0+174506 1717+178 17 19 13.048474 17 45 6.43699 0.000065 0.00147 48244.5 47011.4 49667.9 12 133 ICRF J173302.7-130449 1730-130 17 33 2.705785 -13 4 49.54820 0.000089 0.00250 47500.6 45259.2 49924.8 624 14448 ICRF J174358.8-035004 1741-038 1 1 17 43 58.856142 - 3 50 4.61667 0.000037 0.00084 48671.3 44773.8 49924.8 1467 41345 ICRF J175342.4+284804 1751+288 2 1 17 53 42.473634 28 48 4.93913 0.000066 0.00147 49206.3 47005.8 49848.8 22 244 ICRF J181945.3-552120 1815-553 18 19 45.399520 -55 21 20.74557 0.000198 0.00196 48756.8 47626.5 49911.8 74 554 ICRF J182314.1+793849 1826+796 4 2 18 23 14.108739 79 38 49.00270 0.000383 0.00122 49348.0 47019.9 49542.2 20 403 ICRF J190255.9+315941 1901+319 19 2 55.938891 31 59 41.70211 0.000070 0.00114 49072.8 48103.5 49756.8 19 190 ICRF J192451.0-291430 1921-293 2 1 19 24 51.055959 -29 14 30.12084 0.000084 0.00217 48425.1 45259.2 49917.8 899 15705 ICRF J192748.4+735801 1928+738 19 27 48.495214 73 58 1.56997 0.000181 0.00081 48080.8 44772.8 49611.9 116 944 ICRF J194025.5-690756 1935-692 19 40 25.528136 -69 7 56.97209 0.000340 0.00189 48972.8 47626.5 49895.6 10 36 ICRF J195510.7-611519 1950-613 19 55 10.770607 -61 15 19.14003 0.000792 0.00365 49048.7 48766.9 49330.5 2 12 ICRF J200057.0-174857 1958-179 1 1 20 0 57.090449 -17 48 57.67236 0.000069 0.00185 49067.1 46875.8 49911.8 591 7567 ICRF J200530.9+775243 2007+777 3 1 20 5 30.998513 77 52 43.24766 0.000146 0.00039 49097.1 45997.8 49694.8 235 11430 ICRF J200617.6+642445 2005+642 20 6 17.694616 64 24 45.41805 0.000133 0.00035 49573.8 49422.9 49798.8 3 52 ICRF J200744.9+402948 2005+403 20 7 44.944909 40 29 48.60472 0.000355 0.00489 48064.0 44773.8 49667.9 8 46 ICRF J201115.7-154640 2008-159 20 11 15.710887 -15 46 40.25296 0.000144 0.00507 48225.6 46840.8 49662.8 35 83 ICRF J202206.6+613658 2021+614 4 3 20 22 6.681695 61 36 58.80479 0.000123 0.00124 49304.3 47165.8 49600.3 27 658 ICRF J212344.5+053522 2121+053 2 1 21 23 44.517381 5 35 22.09321 0.000063 0.00110 47948.5 44773.8 49909.6 657 18823 ICRF J213032.8+050217 2128+048 21 30 32.877495 5 2 17.47450 0.000268 0.00328 48208.4 47288.7 49554.8 22 79 ICRF J213135.2-120704 2128-123 3 2 * 21 31 35.261752 -12 7 4.79583 0.000068 0.00168 48886.9 45466.3 49924.8 462 4897 ICRF J213638.5+004154 2134+004 4 1 21 36 38.586304 0 41 54.21353 0.000115 0.00333 46731.8 44090.5 49897.8 884 18282 ICRF J215155.5-302753 2149-307 21 51 55.524002 -30 27 53.69786 0.000078 0.00154 48434.1 47640.2 49020.5 12 61 ICRF J215806.2-150109 2155-152 21 58 6.281926 -15 1 9.32725 0.000186 0.00303 47917.2 46835.8 49600.3 37 130 ICRF J220243.2+421639 2200+420 3 1 * 22 2 43.291381 42 16 39.97998 0.000066 0.00087 46736.2 44090.5 49883.8 839 21824 ICRF J220314.9+314538 2201+315 3 1 * 22 3 14.975796 31 45 38.27004 0.000034 0.00053 49110.2 45492.6 49883.8 188 7996 ICRF J221852.0-033536 2216-038 3 1 * 22 18 52.037725 - 3 35 36.87944 0.000056 0.00152 47624.5 44773.8 49848.8 449 9472 ICRF J223236.4+114350 2230+114 4 2 22 32 36.408913 11 43 50.90434 0.000079 0.00202 48000.6 45997.8 49662.8 165 1315 ICRF J224618.2-120651 2243-123 22 46 18.231969 -12 6 51.27684 0.000051 0.00124 49115.0 44773.8 49924.8 133 930 ICRF J225357.7+160853 2251+158 * 22 53 57.747938 16 8 53.56088 0.000079 0.00137 46700.1 44090.5 49848.8 1121 30988 ICRF J225805.9-275821 2255-282 1 2 22 58 5.962888 -27 58 21.25659 0.000088 0.00240 48869.9 46875.8 49911.8 662 7579 ICRF J234029.0+264156 2337+264 4 3 * 23 40 29.029471 26 41 56.80428 0.000095 0.00106 49388.4 48357.8 49848.8 10 363 ICRF J234802.6-163112 2345-167 23 48 2.608517 -16 31 12.02167 0.000139 0.00287 47712.9 46440.9 49662.8 153 849 ICRF J235421.6+455304 2351+456 * 23 54 21.680275 45 53 4.23669 0.000096 0.00127 48370.1 47011.4 49662.8 29 172 ICRF J235509.4+495008 2352+495 23 55 9.458164 49 50 8.34014 0.000208 0.00262 48116.3 47019.9 49659.8 14 140