FILE NAME : ACC_monthly_scale_factors_GB_2002-2016.txt DATA TYPE : ScaleFac CREATOR INSTITUTION : ZARM - Center of Applied Space Technology and Microgravity, University of Bremen CREATOR EMAIL : florian.woeske@zarm.uni-bremen.de CREATOR URL : https://www.zarm.uni-bremen.de/zarm_daten/ DATE FILE CREATED : 16-Sep-2024 14:37:06 +0200 NUMBER OF HEADER RECORDS : 31 SATELLITE NAME : GRACE B TIME EPOCH (GPS TIME) : 2000-01-01 12:00:00 TIME FIRST OBS(SEC PAST EPOCH) : 70891213 (2002-04-01 00:00:00)(UTC) TIME LAST OBS(SEC PAST EPOCH) : 533822417 (2016-12-01 00:00:00)(UTC) NUMBER OF DATA RECORDS : 177 COMMENTS : Monthly estimated accelerometer scale factors from calibration with 3 hourly bias The 3 hourly bias values are given in a seperate file: ACC_Calibration_GB_monthly_scale_2002-2016.txt For general purpose we recommend to use the other calibration with const. scale factors, given in a seperate file: ACC_Calibration_GB_const_scale_2002-2016.txt Calibration equation: ACC_cal = s (ACC + b) !!!Pay attention to the brackets!!! The scale is given for each month, the corresponding time is at the beginning of the month. The scale factors should not be interpolated between months becasue the corresponding bias is based on that value Missing data in this file are indicated as "NaN". Detailed information is given in: F. Woeske et al. "Tailored accelerometer calibration by POD for thermospheric density retrieval with GRACE and GRACE-FO", Adv. Space Res. (2024), doi.org/10.1016/j.asr.2024.09.021 SUMMARY : Scale factors of linear accelerations in SRF VARIABLES COLUMN 1: GPS time [s] - Continuous seconds past 01-Jan-2000 11:59:47 UTC COLUMN 2: Satellite ID [-] COLUMN 3: scale x [-] COLUMN 4: scale y [-] COLUMN 5: scale z [-] # END OF HEADER 70891213 B 0.947018 0.948642 0.949911 73483213 B 0.945522 0.954616 0.907917 76161613 B NaN NaN NaN 78753613 B NaN NaN NaN 81432013 B 0.943448 0.945063 0.959792 84110413 B 0.949840 0.949237 0.882708 86702413 B 0.948663 0.936655 0.933833 89380813 B 0.948716 0.988891 0.918228 91972813 B 0.949984 0.972701 0.924089 94651213 B 0.942450 0.942555 0.953872 97329613 B 0.947212 0.964399 0.954026 99748813 B 0.943518 0.960462 0.937094 102427213 B 0.943455 0.973959 0.913561 105019213 B 0.945864 0.899083 0.929591 107697613 B 0.938111 0.854821 1.026390 110289613 B 0.946302 0.935637 0.943351 112968013 B 0.952432 0.995638 0.878049 115646413 B 0.939518 0.967787 0.963128 118238413 B 0.942672 0.971162 0.929956 120916813 B 0.945536 0.966662 0.938734 123508813 B 0.946326 0.897161 0.949663 126187213 B 0.945960 0.982193 0.936757 128865613 B 0.941640 0.949827 0.958527 131371213 B 0.948736 0.986011 0.915126 134049613 B 0.946902 0.947599 0.934557 136641613 B 0.950267 0.937927 0.912299 139320013 B 0.967865 0.951928 0.848391 141912013 B 0.946043 0.993839 0.938678 144590413 B 0.954072 1.066648 0.870621 147268813 B 0.945249 0.970127 0.975390 149860813 B 0.946892 0.917822 0.938447 152539213 B 0.943520 0.900133 0.941877 155131213 B 0.947282 0.912813 0.939399 157809613 B 0.937519 0.952021 1.016604 160488013 B 0.944208 0.926088 0.940649 162907213 B 0.947587 0.932819 0.931894 165585613 B 0.948782 0.887590 0.938225 168177613 B 0.950136 1.000208 0.921383 170856013 B 0.936161 0.974046 0.996035 173448013 B 0.944704 0.962477 0.946611 176126413 B 0.941851 0.948913 0.960075 178804813 B 0.946364 0.927722 0.942438 181396813 B 0.946407 1.004219 0.944606 184075213 B 0.942348 0.964492 0.970282 186667213 B 0.941188 0.941597 0.959805 189345614 B 0.941087 0.953939 0.953125 192024014 B 0.940883 0.914293 0.959527 194443214 B 0.948736 0.958407 0.944832 197121614 B 0.949702 0.964410 0.940956 199713614 B 0.932400 0.921042 0.995827 202392014 B 0.946478 0.956033 0.963491 204984014 B 0.940438 0.947552 0.964016 207662414 B 0.938437 0.924309 0.958716 210340814 B 0.929572 0.984495 0.952110 212932814 B 0.951272 0.937796 0.926233 215611214 B 0.940296 0.954237 0.995752 218203214 B 0.918556 0.936333 0.736178 220881614 B 0.943052 0.981189 0.960173 223560014 B 0.941689 0.993583 0.970326 225979214 B 0.941768 0.949178 0.973777 228657614 B 0.944035 0.954686 0.953150 231249614 B 0.937510 0.942879 0.971073 233928014 B 0.946238 0.969786 0.944763 236520014 B 0.930967 0.878631 0.979313 239198414 B 0.955299 0.965989 0.932593 241876814 B 0.946530 1.041289 0.942827 244468814 B 0.931977 0.976199 0.980017 247147214 B 0.944676 0.941671 0.954409 249739214 B 0.932057 0.978822 0.990061 252417614 B 0.934534 0.971420 0.977609 255096014 B NaN NaN NaN 257601614 B NaN NaN NaN 260280014 B 0.941226 0.936130 0.961255 262872014 B 0.935438 0.925091 0.974433 265550414 B 0.935634 0.971331 0.969378 268142414 B 0.952976 0.981073 0.941133 270820814 B -0.010194 0.974586 2.594574 273499214 B 0.922475 0.955129 1.010366 276091214 B 0.930379 0.903278 0.982456 278769614 B 0.935238 1.018462 0.975182 281361614 B 0.943870 0.979245 0.961101 284040015 B 1.297865 -0.067862 1.016577 286718415 B 0.942855 0.948457 0.953881 289137615 B 0.941260 0.916387 0.956190 291816015 B 0.935134 1.013691 0.961569 294408015 B 0.933516 0.977411 0.968621 297086415 B 0.936611 0.956971 0.984551 299678415 B 0.938675 0.966993 0.965907 302356815 B 0.943932 0.924584 0.941991 305035215 B 0.960684 1.044126 0.903450 307627215 B 0.997427 0.994812 0.844803 310305615 B 0.939720 0.965752 0.959251 312897615 B 0.949324 0.953302 0.948169 315576015 B 0.940099 0.951448 0.969788 318254415 B 0.939512 0.902163 0.960187 320673615 B 0.932010 0.955642 0.951712 323352015 B 0.935097 0.961134 0.920879 325944015 B 0.937140 0.976113 0.950031 328622415 B 0.940181 0.960831 0.969569 331214415 B 0.939098 0.914372 0.941581 333892815 B 0.931090 0.981158 0.962357 336571215 B 0.923141 0.955269 1.003016 339163215 B 0.936508 1.012938 0.955852 341841615 B 0.934529 0.964772 0.950632 344433615 B NaN NaN NaN 347112015 B NaN NaN NaN 349790415 B 0.995848 0.815070 2.676965 352209615 B 0.938519 0.976847 0.943684 354888015 B 0.934405 0.956405 0.987815 357480015 B 0.920527 0.942130 0.929241 360158415 B 0.922661 0.749514 0.919993 362750415 B 0.927880 0.914823 0.937823 365428815 B 0.936616 0.932594 0.888159 368107215 B 0.930942 0.955897 0.950082 370699215 B 0.925954 0.956683 0.955633 373377615 B 0.925413 0.942863 0.974733 375969615 B 0.914484 0.550819 0.957185 378648015 B 0.930215 0.919533 0.889417 381326415 B 0.930970 0.947102 0.899177 383832015 B 0.921695 0.937863 0.958574 386510415 B 0.919863 0.877176 0.972415 389102415 B 0.926544 0.282997 0.893058 391780815 B 0.924533 0.977193 0.926104 394372816 B 0.931146 0.929189 0.970164 397051216 B 0.929369 0.948119 0.991679 399729616 B 0.925321 0.945802 0.941359 402321616 B NaN NaN NaN 405000016 B 0.921352 0.497691 0.940095 407592016 B 0.929924 0.930389 0.871940 410270416 B 0.922300 0.945358 0.994247 412948816 B 0.921007 0.927422 0.946487 415368016 B NaN NaN NaN 418046416 B 0.915354 0.573906 1.009903 420638416 B 0.932519 0.946115 0.829485 423316816 B 0.926706 0.944581 0.994652 425908816 B 0.924775 0.942438 0.968698 428587216 B 0.924166 0.924366 0.957588 431265616 B 1.235842 0.195958 1.622952 433857616 B 0.921673 0.935613 0.925699 436536016 B 0.934555 0.968080 0.891369 439128016 B 0.921381 0.957476 1.073836 441806416 B 0.921548 0.942000 1.001954 444484816 B 0.923268 0.938512 0.949287 446904016 B 0.924771 0.967752 0.948015 449582416 B 0.934057 0.967758 0.856034 452174416 B 0.928883 0.958302 1.123233 454852816 B 0.924315 0.946692 0.967666 457444816 B 0.912396 0.046248 0.933699 460123216 B 0.924001 0.920197 0.922237 462801616 B 0.930927 0.972983 0.962452 465393616 B 0.930617 0.970632 0.931936 468072016 B 0.927270 0.954039 0.899145 470664016 B 0.926371 0.933174 0.961689 473342416 B 0.922201 0.854444 0.932560 476020816 B 0.930506 0.900927 0.920995 478440016 B 0.932954 0.959273 0.920425 481118416 B 0.926083 0.952831 1.022697 483710416 B 0.923523 0.950430 1.027324 486388816 B 0.913889 0.659322 0.869820 488980817 B 0.923750 0.952454 0.891236 491659217 B 0.934728 0.943774 0.908147 494337617 B 0.929586 0.964473 0.892802 496929617 B NaN NaN NaN 499608017 B NaN NaN NaN 502200017 B 0.921617 0.930989 0.951589 504878417 B 0.933544 0.967293 0.904962 507556817 B 0.933029 0.950618 1.013767 510062417 B 0.927518 0.945277 1.022377 512740817 B 0.925440 0.921102 0.949021 515332817 B 0.922625 0.810399 0.857503 518011217 B 0.929190 0.938188 0.923885 520603217 B 0.931677 0.901404 0.935616 523281617 B 0.944861 0.962443 0.906717 525960017 B 0.941534 1.017495 0.922291 528552017 B NaN NaN NaN 531230417 B NaN NaN NaN 533822417 B NaN NaN NaN