FILE NAME : ACC_monthly_scale_factors_GA_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 12:39:14 +0200 NUMBER OF HEADER RECORDS : 31 SATELLITE NAME : GRACE A 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_GA_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_GA_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 A 0.962843 0.992405 0.963069 73483213 A 0.960985 0.990511 0.921254 76161613 A NaN NaN NaN 78753613 A NaN NaN NaN 81432013 A 0.962008 0.959008 0.964207 84110413 A 0.961597 0.957565 0.927010 86702413 A 0.961412 0.973699 0.991476 89380813 A 0.962208 1.007640 0.950746 91972813 A 0.964282 0.983171 0.950247 94651213 A 0.964423 0.970204 0.958447 97329613 A 0.960617 0.937689 0.971471 99748813 A 0.959325 0.921659 0.943505 102427213 A 0.956018 1.024531 0.892737 105019213 A 0.957715 0.987037 0.980527 107697613 A 0.957410 0.974938 0.971285 110289613 A 0.957340 0.951416 0.983007 112968013 A 0.964356 0.946390 0.918298 115646413 A 0.956039 0.956932 0.962781 118238413 A 0.957640 0.984382 0.936157 120916813 A 0.959950 0.983847 0.972723 123508813 A 0.956730 0.932561 0.974550 126187213 A 0.956596 0.951551 0.960283 128865613 A 0.959266 0.911488 0.948705 131371213 A 0.959304 1.004118 0.948588 134049613 A 0.959872 0.960593 0.980982 136641613 A 0.959394 0.952443 0.947735 139320013 A 0.969163 0.916872 0.906879 141912013 A 0.958396 0.966548 0.961383 144590413 A 0.966528 1.040965 0.901780 147268813 A 0.958531 0.960079 1.012434 149860813 A 0.958903 0.918708 0.958369 152539213 A 0.953981 0.921861 0.957058 155131213 A 0.958236 0.998576 0.954733 157809613 A 0.946816 0.925999 1.047016 160488013 A 0.956399 0.963276 0.984622 162907213 A 0.956254 0.944573 0.968268 165585613 A 0.957342 0.898514 0.966020 168177613 A 0.961703 0.953819 0.955198 170856013 A 0.955244 0.941621 0.976063 173448013 A 0.956364 0.949301 0.981521 176126413 A 0.955197 0.948517 0.976692 178804813 A 0.958638 0.933983 0.953844 181396813 A 0.955102 0.975422 0.965499 184075213 A 0.961451 0.943449 0.951962 186667213 A 0.957648 0.948053 0.952065 189345614 A 0.961762 0.972970 0.924590 192024014 A 0.963726 0.948841 0.934734 194443214 A 0.974984 0.931214 0.913948 197121614 A 0.953257 0.958127 0.965729 199713614 A 0.954304 0.950075 0.960321 202392014 A 0.963420 0.980874 0.948044 204984014 A 0.959029 0.977511 0.954004 207662414 A 0.954435 0.951372 0.967709 210340814 A 0.949025 0.958359 0.963721 212932814 A 0.962497 0.926597 0.956826 215611214 A 0.965449 1.001764 0.932380 218203214 A 0.957645 0.979276 0.954856 220881614 A 0.966692 0.790932 0.932691 223560014 A 0.968906 0.943302 0.927333 225979214 A 0.945670 0.921318 0.996920 228657614 A 0.957428 1.030195 0.960603 231249614 A 0.955410 0.972144 0.964915 233928014 A 0.964384 0.934269 0.946344 236520014 A 0.955677 0.901037 0.968278 239198414 A 0.971886 0.945538 0.948885 241876814 A 0.957945 0.924557 0.951001 244468814 A 0.958824 1.001949 0.947315 247147214 A 0.968360 0.910497 0.923842 249739214 A 0.963309 0.927299 0.945952 252417614 A 0.968109 0.932421 0.931008 255096014 A 0.961275 0.892886 0.945901 257601614 A 0.953764 0.984187 0.943452 260280014 A 0.961321 0.889263 0.940303 262872014 A 0.963704 0.946621 0.953198 265550414 A 0.958084 0.931610 0.962481 268142414 A 0.969455 0.938396 0.949712 270820814 A 0.955644 0.936689 0.955022 273499214 A 0.948202 0.967689 0.976803 276091214 A 0.958853 0.948094 0.949794 278769614 A 0.961334 0.954159 0.944476 281361614 A 0.957453 0.944251 0.956648 284040015 A 1.056732 0.721180 0.954018 286718415 A 0.977547 0.954500 0.915612 289137615 A 0.958364 0.941684 0.964588 291816015 A 0.959659 0.898649 0.958424 294408015 A 0.954763 0.935893 0.965339 297086415 A 0.954189 0.922742 0.995421 299678415 A 0.965248 0.961063 0.939424 302356815 A 0.973427 0.939672 0.915416 305035215 A 0.996151 1.004467 0.860592 307627215 A 1.001114 0.952761 0.858808 310305615 A 0.951580 0.927942 0.954506 312897615 A 0.973059 0.944337 0.940003 315576015 A 0.961000 0.956058 0.960422 318254415 A 0.962792 0.929840 0.946660 320673615 A 0.951313 0.833322 0.956593 323352015 A 0.953304 0.927221 0.934595 325944015 A 0.951426 0.952443 0.952715 328622415 A 0.961907 0.966593 0.943268 331214415 A 0.957897 0.925156 0.931669 333892815 A 0.956137 0.960712 0.930286 336571215 A 0.935452 0.933530 1.001212 339163215 A 0.947804 0.988285 0.950773 341841615 A 0.951409 0.967201 0.939668 344433615 A NaN NaN NaN 347112015 A 0.946305 0.870244 0.923930 349790415 A 0.953008 0.948764 0.950000 352209615 A 0.951925 0.997719 0.956917 354888015 A 0.948066 0.966328 0.941095 357480015 A 0.937802 0.953302 0.918611 360158415 A 0.938693 0.978396 0.919564 362750415 A 0.942271 0.821809 0.917129 365428815 A 0.939122 0.946394 0.917797 368107215 A 0.939117 0.963921 0.921190 370699215 A 0.935692 0.963126 0.910356 373377615 A 0.936951 0.945263 0.917644 375969615 A 0.933459 0.356570 0.942889 378648015 A 0.952100 0.936643 0.875544 381326415 A 0.949593 0.976029 0.879394 383832015 A 0.939025 0.944063 0.907745 386510415 A 0.937262 0.903431 0.937590 389102415 A 0.936866 0.096953 0.871374 391780815 A 0.937998 1.010362 0.877232 394372816 A 0.943406 0.960765 0.905983 397051216 A 0.940105 0.958260 0.920880 399729616 A 0.935537 0.953568 0.919000 402321616 A NaN NaN NaN 405000016 A 0.939335 0.506004 0.916895 407592016 A 0.943753 0.943327 0.916700 410270416 A 0.940395 0.961279 0.941701 412948816 A 0.937659 0.944462 0.919469 415368016 A NaN NaN NaN 418046416 A 0.929413 0.540990 0.958992 420638416 A 0.938137 0.973856 0.871777 423316816 A 0.937183 0.960146 0.919099 425908816 A 0.934960 0.954316 0.912812 428587216 A 0.934709 0.941716 0.924882 431265616 A 0.935373 0.157401 0.928784 433857616 A 0.936834 0.960250 0.919108 436536016 A 0.951519 0.978663 0.889468 439128016 A 0.940026 0.969814 0.929154 441806416 A 0.937828 0.957812 0.939093 444484816 A 0.936102 0.939135 0.915954 446904016 A 0.935940 0.964885 0.895277 449582416 A 0.941662 0.968448 0.874353 452174416 A 0.938761 0.966688 0.933937 454852816 A 0.934019 0.960818 0.922899 457444816 A 0.925958 0.059874 0.910860 460123216 A 0.933035 0.952260 0.939097 462801616 A 0.937613 0.992870 0.918673 465393616 A 0.935688 0.980138 0.996689 468072016 A 0.936738 0.964435 0.859845 470664016 A 0.934866 0.937239 1.074129 473342416 A 0.933306 0.855835 0.927722 476020816 A 0.939559 0.901941 0.929740 478440016 A 0.940283 0.956667 0.908431 481118416 A 0.934832 0.955014 0.906752 483710416 A NaN NaN NaN 486388816 A 0.927330 0.650883 0.887050 488980817 A 0.933859 0.971776 0.946518 491659217 A 0.943037 0.975716 0.994408 494337617 A 0.937057 0.968876 0.905087 496929617 A 0.931327 0.967885 1.051476 499608017 A NaN NaN NaN 502200017 A 0.929587 0.916048 0.914627 504878417 A 0.940209 0.964456 0.899866 507556817 A 0.938895 0.951343 0.915796 510062417 A 0.935387 0.947937 0.916444 512740817 A 0.936383 0.921366 0.925423 515332817 A 0.932972 0.775742 0.917380 518011217 A 0.938691 1.000232 1.064780 520603217 A 0.935115 0.971627 1.050205 523281617 A 0.933370 0.966766 0.998055 525960017 A 0.929236 0.996279 1.304616 528552017 A 0.927437 0.934656 1.030162 531230417 A 0.937333 0.951650 0.860343 533822417 A 0.938897 0.956943 0.850909