# text format catalogue file --- do not edit manually, use 'lc'
# header:
# text 1 1 byteorder LITTLE_ENDIAN
# comment: history: lc -C -n DCE -n DCEnum -n AOR -t Filename -n PID -n Ch -n MJD -n Exptime -n RA -n DEC -n PA -n l -n b -t AOTType -n ISM -n Zody
# comment: history: lc -b
# comment: history: lc 'DCE' 'AOR' 'PID' 'MJD' 'Exptime' 'RA' 'DEC' 'PA' 'ISM' 'Zody'
# contents: 10
# number 1 1 DCE
# number 1 1 AOR
# number 1 1 PID
# number 1 1 MJD
# number 1 1 Exptime
# number 1 1 RA
# number 1 1 DEC
# number 1 1 PA
# number 1 1 ISM
# number 1 1 Zody
# DCE AOR PID MJD Exptime RA DEC PA ISM Zody
12076645 4707328 82 53085.5102195 9.960000000000001 107.360314958981 74.7988838909847 -160.669756262091 0.09695876 21.36369
12076646 4707328 82 53085.5103469 9.960000000000001 107.409372684781 74.83405861720129 -160.622405127149 0.0942518 21.35418
12076647 4707328 82 53085.5104743 9.960000000000001 107.364656322487 74.8020026636182 -160.665578944034 0.09651691 21.36286
12076648 4707328 82 53085.5106018 9.960000000000001 107.413749048285 74.83718243528951 -160.618199354548 0.09397883 21.35335
12076649 4707328 82 53085.5107292 9.960000000000001 107.36899404963 74.8051269817062 -160.661398807796 0.09606897 21.36204
12076650 4707328 82 53085.5108566 9.960000000000001 107.418094957247 74.8403033442866 -160.614001491037 0.09368081 21.35252
12076651 4707328 82 53085.510984 9.960000000000001 107.404983594004 74.83092979911351 -160.626676445202 0.09450103 21.35507
12076669 4707328 82 53085.5114816 9.960000000000001 107.234198144584 74.81036689064049 -160.792768076581 0.09816867999999999 21.36538
12076670 4707328 82 53085.5116091 9.960000000000001 107.282985870394 74.84557443503751 -160.74567735072 0.09373832999999999 21.35587
12076671 4707328 82 53085.5117365 9.960000000000001 107.238499508092 74.8134935723641 -160.788607349432 0.09769279 21.36456
12076672 4707328 82 53085.5118639 9.960000000000001 107.287334961172 74.84869816221639 -160.741475078119 0.09345868 21.35504
12076673 4707328 82 53085.5119914 9.960000000000001 107.242839507962 74.81662575408819 -160.784430940467 0.09721024 21.36372
12076674 4707328 82 53085.5121188 9.960000000000001 107.291699961041 74.8518314348497 -160.737283669154 0.09317046 21.35421
12076675 4707328 82 53085.5122462 9.960000000000001 107.278649052342 74.84244879876771 -160.749905896048 0.09401060999999999 21.35675
12076696 4707328 82 53085.5131625 9.960000000000001 107.108615284719 74.6057748104178 -160.912181172995 0.1278707 21.41595
12076697 4707328 82 53085.5132899 9.960000000000001 107.147042283565 74.6340569095688 -160.875111674108 0.1217024 21.40824
12076698 4707328 82 53085.5134174 9.960000000000001 107.121397784335 74.6152066601346 -160.899837773365 0.1252981 21.41339
12076699 4707328 82 53085.5135448 9.960000000000001 107.15987928318 74.6434896092856 -160.86274022448 0.1197631 21.40569
12076700 4707328 82 53085.5136723 9.960000000000001 107.134199283951 74.6246382098515 -160.887496973736 0.1235457 21.41083
12076701 4707328 82 53085.5137997 9.960000000000001 107.134193783951 74.6246391598515 -160.887500623736 0.1235458 21.41084
12076702 4707328 82 53085.5139271 9.960000000000001 107.108592784719 74.6057831604176 -160.912181822995 0.127872 21.41599
12076703 4707328 82 53085.5140546 9.960000000000001 107.147048283565 74.6340619595686 -160.875108774108 0.1217006 21.40829
12076704 4707328 82 53085.514182 9.960000000000001 107.121411784335 74.6152090601346 -160.899834673366 0.1252979 21.41344
12076705 4707328 82 53085.5143094 9.960000000000001 107.159887283179 74.64348535928571 -160.862740124479 0.1197621 21.40574
12076706 4707328 82 53085.5144368 9.960000000000001 107.13422328395 74.6246381098515 -160.887486323736 0.1235446 21.41088
12076707 4707328 82 53085.5145643 9.960000000000001 107.13423078395 74.62463895985159 -160.887483473736 0.1235446 21.41089
12076708 4707328 82 53085.5146917 9.960000000000001 107.108622784719 74.60578591041759 -160.912167922995 0.1278653 21.41604
12076709 4707328 82 53085.5148191 9.960000000000001 107.147054783565 74.63406925956841 -160.875123724107 0.1216995 21.40834
12076710 4707328 82 53085.5149466 9.960000000000001 107.121401284335 74.61521501013441 -160.899852523365 0.1252964 21.41349
12076711 4707328 82 53085.515074 9.960000000000001 107.15988478318 74.6434939092855 -160.862750424479 0.1197601 21.40579
12076712 4707328 82 53085.5152014 9.960000000000001 107.13421578395 74.6246403598515 -160.887513523736 0.1235447 21.41094
12076713 4707328 82 53085.5153288 9.960000000000001 107.13421128395 74.6246410098515 -160.887515573736 0.1235447 21.41094
12076714 4707328 82 53085.5154563 9.960000000000001 107.10859978472 74.6057837104175 -160.912195622995 0.1278704 21.4161
12076715 4707328 82 53085.5155837 9.960000000000001 107.147038283565 74.6340670095686 -160.875136774107 0.1217006 21.40839
12076716 4707328 82 53085.5157111 9.960000000000001 107.121399784335 74.6152105601345 -160.899863523365 0.1252964 21.41354
12076717 4707328 82 53085.5158386 9.960000000000001 107.159877283179 74.64348990928571 -160.86275322448 0.1197631 21.40584
12076718 4707328 82 53085.515966 9.960000000000001 107.13421128395 74.6246372598515 -160.887496023736 0.1235447 21.41099
12076719 4707328 82 53085.5160934 9.960000000000001 107.13421578395 74.6246345598516 -160.887505873736 0.1235473 21.411
12076720 4707328 82 53085.5162208 9.960000000000001 107.108604284719 74.6057818104176 -160.912194122995 0.1278704 21.41615
12076721 4707328 82 53085.5163483 9.960000000000001 107.147035783565 74.6340652595685 -160.875143824107 0.1217006 21.40844
12076722 4707328 82 53085.5164757 9.960000000000001 107.121400284335 74.61521211013449 -160.899857573365 0.1252964 21.41359
12076723 4707328 82 53085.5166032 9.960000000000001 107.159891783179 74.64349085928561 -160.862749324479 0.1197621 21.40589
12076724 4707328 82 53085.5167306 9.960000000000001 107.13422628395 74.6246379598516 -160.887501523736 0.1235446 21.41104
12076725 4707328 82 53085.516858 9.960000000000001 107.13422628395 74.6246398098514 -160.887502323736 0.1235446 21.41105
12076792 4707328 82 53085.5175073 9.960000000000001 107.094177785152 74.6072899603723 -160.926513272565 0.1281004 21.41638
12076793 4707328 82 53085.5176347 9.960000000000001 107.132589783999 74.6355823095229 -160.88945992368 0.1219854 21.40867
12076794 4707328 82 53085.5177621 9.960000000000001 107.106958784768 74.6167333100888 -160.914120172938 0.1256258 21.41382
12076795 4707328 82 53085.5178896 9.960000000000001 107.145407783614 74.6450125592399 -160.87700182405 0.1200257 21.40612
12076796 4707328 82 53085.518017 9.960000000000001 107.119767284384 74.6261593098059 -160.90170857331 0.1238528 21.41126
12076797 4707328 82 53085.5181444 9.960000000000001 107.119748284385 74.6261587598059 -160.901716973308 0.1238529 21.41127
12076798 4707328 82 53085.5182719 9.960000000000001 107.094124285154 74.607305810372 -160.926435922567 0.1280966 21.41643
12076799 4707328 82 53085.5183993 9.960000000000001 107.132519784001 74.6355910095227 -160.889428573679 0.1219876 21.40872
12076800 4707328 82 53085.5185267 9.960000000000001 107.10690228477 74.6167369100887 -160.914138822937 0.125628 21.41387
12076801 4707328 82 53085.5186542 9.960000000000001 107.145364783616 74.64502040923971 -160.877025674049 0.1200248 21.40617
12076802 4707328 82 53085.5187816 9.960000000000001 107.119713784383 74.6261759098056 -160.901742823312 0.1238522 21.41131
12076803 4707328 82 53085.5189091 9.960000000000001 107.119711284385 74.6261784598053 -160.90174627331 0.1238522 21.41132
12076804 4707328 82 53085.5190365 9.960000000000001 107.094122785154 74.6073147103715 -160.926442472566 0.1280966 21.41648
12076805 4707328 82 53085.5191639 9.960000000000001 107.132539965819 74.6355853049775 -160.889413028225 0.1219875 21.40877
12076806 4707328 82 53085.5192913 9.960000000000001 107.106919512042 74.6167271237255 -160.914117163846 0.1256294 21.41393
12076807 4707328 82 53085.5194188 9.960000000000001 107.145374965434 74.6450102137856 -160.87705248314 0.1200268 21.40622
12076808 4707328 82 53085.5195462 9.960000000000001 107.119707693477 74.6261587598059 -160.901802527852 0.1238549 21.41137
12076809 4707328 82 53085.5196736 9.960000000000001 107.119707238931 74.62616089616949 -160.901799346035 0.1238549 21.41138
12076810 4707328 82 53085.5198011 9.960000000000001 107.094115421517 74.6073024421902 -160.926463118022 0.1281009 21.41653
12076811 4707328 82 53085.5199285 9.960000000000001 107.132519056728 74.6355837140685 -160.889409846406 0.1219886 21.40882
12076812 4707328 82 53085.5200559 9.960000000000001 107.10689678477 74.6167266691799 -160.914102118392 0.1256305 21.41398
12076813 4707328 82 53085.5201833 9.960000000000001 107.145354965434 74.6450104410583 -160.87702157405 0.1200279 21.40627
12076814 4707328 82 53085.5203108 9.960000000000001 107.119674057114 74.6261620325331 -160.901790982397 0.1238561 21.41142
12076815 4707328 82 53085.5204382 9.960000000000001 107.119672238932 74.6261611688967 -160.90178930058 0.1238561 21.41143
12076816 4707328 82 53085.5205656 9.960000000000001 107.094071785155 74.6073022603719 -160.926510936201 0.1280999 21.41658
12076817 4707328 82 53085.5206931 9.960000000000001 107.132492693093 74.63558212315939 -160.88945371004 0.1219886 21.40888
12076818 4707328 82 53085.5208205 9.960000000000001 107.106865421135 74.61672816917989 -160.914161436571 0.1256316 21.41403
12076819 4707328 82 53085.5209479 9.960000000000001 107.145291329072 74.6450110319672 -160.877133983137 0.12003 21.40633
12076820 4707328 82 53085.5210753 9.960000000000001 107.119626329843 74.6261621688967 -160.901875346032 0.1238582 21.41147
12076821 4707328 82 53085.5212028 9.960000000000001 107.119642693479 74.62616503253309 -160.901850255123 0.123857 21.41148
12076888 4707328 82 53085.5221919 9.960000000000001 107.578769770605 74.92521225082859 -160.459219336592 0.09474726 21.32898
12076889 4707328 82 53085.5223193 9.960000000000001 107.602496269892 74.9419034003276 -160.43630553728 0.09324992 21.32448
12076890 4707328 82 53085.5224467 9.960000000000001 107.584709770427 74.9293803007036 -160.453462886765 0.09436327999999999 21.32787
12076891 4707328 82 53085.5225742 9.960000000000001 107.608447269714 74.9460730502025 -160.430541837453 0.0928945 21.32338
12076892 4707328 82 53085.5227016 9.960000000000001 107.59063377025 74.9335480005784 -160.447737286937 0.09398586 21.32676
12076893 4707328 82 53085.522829 9.960000000000001 107.614372769537 74.9502424000772 -160.424824337625 0.09254552000000001 21.32227
12076894 4707328 82 53085.5229565 9.960000000000001 107.596550270072 74.9377227504531 -160.442038637108 0.09361438 21.32565
12076895 4707328 82 53085.5230839 9.960000000000001 107.596543270072 74.9377233504531 -160.442031937109 0.09361438 21.32566
12076896 4707328 82 53085.5232113 9.960000000000001 107.578761270605 74.925198300829 -160.459209286593 0.09474847 21.32905
12076897 4707328 82 53085.5233387 9.960000000000001 107.602475769894 74.9418952503278 -160.436308137281 0.09325119 21.32455
12076898 4707328 82 53085.5234662 9.960000000000001 107.584680270428 74.9293748007037 -160.453496936764 0.09436258 21.32794
12076899 4707328 82 53085.5235936 9.960000000000001 107.608414769715 74.94606910020271 -160.430576837452 0.09289384000000001 21.32344
12076900 4707328 82 53085.523721 9.960000000000001 107.59061477025 74.9335458505785 -160.447777786936 0.09398602 21.32683
12076901 4707328 82 53085.5238485 9.960000000000001 107.614361269536 74.9502395500774 -160.424826287627 0.09254552000000001 21.32234
12076902 4707328 82 53085.5239759 9.960000000000001 107.596534770072 74.93771985045311 -160.442039987109 0.09361412 21.32572
12076903 4707328 82 53085.5241034 9.960000000000001 107.596541770072 74.9377208504532 -160.442045637108 0.09361438 21.32573
12076904 4707328 82 53085.5242308 9.960000000000001 107.578767770606 74.92520005082901 -160.459200936592 0.0947489 21.32911
12076905 4707328 82 53085.5243582 9.960000000000001 107.602486269892 74.94189425032801 -160.436296387282 0.09325103 21.32462
12076906 4707328 82 53085.5244857 9.960000000000001 107.584677270428 74.9293761507036 -160.453482636765 0.09436274 21.328
12076907 4707328 82 53085.5246131 9.960000000000001 107.608413269715 74.9460712002025 -160.430574087453 0.09289384000000001 21.32351
12076908 4707328 82 53085.5247405 9.960000000000001 107.590622770249 74.9335484505784 -160.447758236936 0.09398586 21.32689
12076909 4707328 82 53085.5248679 9.960000000000001 107.614360269537 74.9502430500772 -160.424820837625 0.09254552000000001 21.3224
12076910 4707328 82 53085.5249954 9.960000000000001 107.596552270072 74.9377225504531 -160.44200728711 0.09361438 21.32579
12076911 4707328 82 53085.5251228 9.960000000000001 107.596551270071 74.937723850453 -160.442035737108 0.09361438 21.32579
12076912 4707328 82 53085.5252502 9.960000000000001 107.578762770605 74.92520365082881 -160.459210336593 0.09474726 21.32918
12076913 4707328 82 53085.5253777 9.960000000000001 107.602482769893 74.9418994003277 -160.436299637282 0.09325103 21.32469
12076914 4707328 82 53085.5255051 9.960000000000001 107.584690270427 74.9293783507035 -160.453503886764 0.09436301 21.32807
12076915 4707328 82 53085.5256325 9.960000000000001 107.608418269715 74.9460738502024 -160.430573387452 0.09289384000000001 21.32358
12076916 4707328 82 53085.5257599 9.960000000000001 107.590624770249 74.9335504005783 -160.447752386937 0.09398586 21.32696
12076917 4707328 82 53085.5258874 9.960000000000001 107.614365769537 74.9502435500772 -160.424834587625 0.09254552000000001 21.32247
12076918 4707328 82 53085.5260148 9.960000000000001 107.596557770072 74.9377235504531 -160.442029737109 0.09361438 21.32585
12076919 4707328 82 53085.5261422 9.960000000000001 107.596548270071 74.937725050453 -160.442036737109 0.09361438 21.32586
12076990 4707328 82 53085.5268158 9.960000000000001 107.532319499272 74.9322109324369 -160.506883494253 0.09360427 21.32925
12076991 4707328 82 53085.5269432 9.960000000000001 107.555988589471 74.9489136592081 -160.484078404028 0.09217098 21.32476
12076992 4707328 82 53085.5270706 9.960000000000001 107.538240862732 74.93638456867529 -160.50126926715 0.09323444 21.32814
12076993 4707328 82 53085.5271981 9.960000000000001 107.561924498383 74.9530789318104 -160.478455949653 0.09183077000000001 21.32365
12076994 4707328 82 53085.5273255 9.960000000000001 107.54414222619 74.9405531140045 -160.495656721862 0.09287459000000001 21.32704
12076995 4707328 82 53085.527453 9.960000000000001 107.567841316388 74.9572524771396 -160.472799495276 0.09149817 21.32254
12076996 4707328 82 53085.5275804 9.960000000000001 107.550036771467 74.9447260684248 -160.49002240385 0.09251872 21.32593
12076997 4707328 82 53085.5277078 9.960000000000001 107.550005407832 74.9447246138792 -160.490080676576 0.09251884 21.32594
12076998 4707328 82 53085.5278353 9.960000000000001 107.532253590184 74.9321953869827 -160.507275403332 0.0936053 21.32932
12076999 4707328 82 53085.5279627 9.960000000000001 107.555927225837 74.9488934319359 -160.484447085836 0.09217151 21.32483
12077000 4707328 82 53085.5280901 9.960000000000001 107.538168135459 74.936363159585 -160.501620948959 0.09323716999999999 21.32822
12077001 4707328 82 53085.5282175 9.960000000000001 107.561848589295 74.95305788635631 -160.478767495097 0.09183286 21.32373
12077002 4707328 82 53085.528345 9.960000000000001 107.544077680738 74.9405339321869 -160.495948130944 0.09287557 21.32711
12077003 4707328 82 53085.5284724 9.960000000000001 107.567787680026 74.9572359771401 -160.473048358905 0.09149905999999999 21.32262
12077004 4707328 82 53085.5285998 9.960000000000001 107.550027226012 74.9447031138799 -160.490224676574 0.09252149 21.326
12077005 4707328 82 53085.5287273 9.960000000000001 107.550026771468 74.944696022971 -160.490260403844 0.09252149 21.32601
12077006 4707328 82 53085.5288547 9.960000000000001 107.532270408365 74.9321691597108 -160.507418221509 0.09360807 21.3294
12077007 4707328 82 53085.5289821 9.960000000000001 107.555962225836 74.94886411375511 -160.484560949469 0.0921756 21.32491
12077008 4707328 82 53085.5291095 9.960000000000001 107.538220408186 74.9363358868583 -160.501735630772 0.09324005 21.32829
12077009 4707328 82 53085.529237 9.960000000000001 107.561905407474 74.95303056817539 -160.478904176912 0.09183609 21.3238
12077010 4707328 82 53085.5293644 9.960000000000001 107.544137680736 74.94049943218801 -160.496073221849 0.09287854 21.32718
12077011 4707328 82 53085.5294918 9.960000000000001 107.567838589116 74.9571917044142 -160.473188086173 0.09150287999999999 21.32269
12077012 4707328 82 53085.5296193 9.960000000000001 107.550067226012 74.94465938660851 -160.490357494748 0.09252594 21.32608
12077013 4707328 82 53085.5297467 9.960000000000001 107.550063135104 74.94465470479039 -160.490366722021 0.09252705 21.32609
12077014 4707328 82 53085.5298741 9.960000000000001 107.532320862909 74.9321218869849 -160.507515130597 0.09361276 21.32947
12077015 4707328 82 53085.5300015 9.960000000000001 107.555979498564 74.9488242046654 -160.484655449465 0.09217968999999999 21.32498
12077016 4707328 82 53085.530129 9.960000000000001 107.538189044551 74.9363065232229 -160.501834903493 0.09324262 21.32836
12077017 4707328 82 53085.5302564 9.960000000000001 107.561856771113 74.95300979544881 -160.479001813272 0.09183647 21.32387
12077018 4707328 82 53085.5303838 9.960000000000001 107.544043589828 74.9404826140066 -160.496226494574 0.09288035 21.32726
12077019 4707328 82 53085.5305113 9.960000000000001 107.567731770936 74.95717806805089 -160.473333631623 0.09150361 21.32277
12077020 4707328 82 53085.5306387 9.960000000000001 107.549960407834 74.9446536593359 -160.490502767471 0.09252589999999999 21.32615
12077021 4707328 82 53085.5307662 9.960000000000001 107.549950862379 74.9446530229726 -160.490488585654 0.09252589999999999 21.32616
111024879 25423360 50099 54796.4666039 9.960000000000001 107.254181325805 74.8458511623019 -5.18812524765622 0.09396181000000001 15.26388
111024880 25423360 50099 54796.4667313 9.960000000000001 107.265321325469 74.808522117968 -5.17737206616238 0.09772375 15.27076
111024881 25423360 50099 54796.4668587 9.960000000000001 107.255182234865 74.84254470785569 -5.18714479314195 0.09420385000000001 15.26449
111024882 25423360 50099 54796.4669862 9.960000000000001 107.266328598166 74.8052066635221 -5.17638661164676 0.09809699 15.27137
111024883 25423360 50099 54796.4671136 9.960000000000001 107.256165416654 74.8392295715917 -5.1862047931703 0.09443753000000001 15.26509
111024884 25423360 50099 54796.467241 9.960000000000001 107.267320416319 74.8018898454397 -5.17543842985634 0.0984652 15.27197
111024885 25423360 50099 54796.4673684 9.960000000000001 107.264343143681 74.8118423905954 -5.17830706613461 0.09734289 15.27014
111024903 25423360 50099 54796.467866 9.960000000000001 107.38769586725 74.84900879857079 -5.05645752433259 0.0927781 15.2644
111024904 25423360 50099 54796.4679935 9.960000000000001 107.398503139653 74.8116622087835 -5.04595888828902 0.09554505000000001 15.27128
111024905 25423360 50099 54796.4681209 9.960000000000001 107.388647230859 74.845687162307 -5.05542070618628 0.0930357 15.26501
111024906 25423360 50099 54796.4682483 9.960000000000001 107.39946859417 74.8083508452458 -5.04496661559176 0.09563339999999999 15.27189
111024907 25423360 50099 54796.4683758 9.960000000000001 107.389631776284 74.8423741169518 -5.05439934257447 0.09335396 15.26562
111024908 25423360 50099 54796.4685032 9.960000000000001 107.400439957777 74.8050289362547 -5.04389479744168 0.09569306 15.2725
111024909 25423360 50099 54796.4686307 9.960000000000001 107.397559957862 74.8149842995923 -5.04661161554247 0.09542739 15.27066
89850437 21690880 40053 54397.3312489 9.960000000000001 107.284396279441 74.8510343530555 14.3206579735095 0.09329472 16.16496
89850438 21690880 40053 54397.3313763 9.960000000000001 107.247291780557 74.8148589541414 14.284831974586 0.09733403 16.17312
89850439 21690880 40053 54397.3315037 9.960000000000001 107.281073779543 74.847816753152 14.3174439736066 0.09357934 16.16568
89850440 21690880 40053 54397.3316312 9.960000000000001 107.243983280657 74.8116407042381 14.2816449746817 0.09780150999999999 16.17384
89850441 21690880 40053 54397.3317586 9.960000000000001 107.277754279645 74.8446039032487 14.3142354737079 0.09385494 16.16639
89850442 21690880 40053 54397.331886 9.960000000000001 107.240706280754 74.8084268043344 14.2784759747762 0.09826178000000001 16.17456
89850443 21690880 40053 54397.3320135 9.960000000000001 107.250564780459 74.8180695040451 14.2879844744901 0.0968629 16.17237
89850461 21690880 40053 54397.3324868 9.960000000000001 107.414499275537 74.8423658033156 14.4457134697563 0.09343846 16.16763
89850462 21690880 40053 54397.3326142 9.960000000000001 107.377127276659 74.8062185544007 14.4096159708396 0.09578853 16.17579
89850463 21690880 40053 54397.3327416 9.960000000000001 107.411177275636 74.8391610034119 14.4424969698526 0.09376919 16.16834
89850464 21690880 40053 54397.332869 9.960000000000001 107.373814276758 74.803009154497 14.4064004709354 0.09622822 16.17651
89850465 21690880 40053 54397.3329965 9.960000000000001 107.407844775736 74.8359587535079 14.4392434699492 0.09407121 16.16906
89850466 21690880 40053 54397.3331239 9.960000000000001 107.370499276858 74.79979590459349 14.4031894710324 0.09666281 16.17723
89850467 21690880 40053 54397.3332514 9.960000000000001 107.380414776559 74.8094336543044 14.4127419707451 0.09554984 16.17504