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Discoverer II

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89: 133:(DSB) was then asked to establish a Task Force on Satellite Reconnaissance (the so-called "Hermann Panel") to review all major aspects of such small satellite systems for defence. In its January 1998 report, the Task Force recommended that a modified STARLITE program be initiated, as a "Military Space Radar Surveillance Program," in an effort to achieve broad-area, all-weather, near-continuous radar access that could be integrated with military operations. In February 1998 DARPA, the Air Force and the NRO established a joint program to undertake a "Space-based Radar Risk Reduction and Demonstration Program". 32: 126:'s Small Satellite Review Panel concluded that: "...now is an appropriate time to make a qualitative change in the systems architecture of the nation's reconnaissance assets... We see the opportunity to move towards an operational capability for the country, at least for imagery systems, that consists of an array of smaller, cheaper spacecraft in larger numbers which is at least as useful as those currently planned and to transport them to space with substantially smaller and less costly launch vehicles." 144:(GMTI) radar systems. Each satellite was envisioned to cost approximately $ 100 million. The constellation would allow for a very rapid revisit rate (about 15 minutes) to most areas of the earth for near-continuous surveillance of terrestrial and maritime vehicles, and could produce 167:
Defense Systems Division. After a study phase, the project planned to launch two experimental satellites for demonstration and risk reduction. The project apparently suffered difficulties, and was canceled by Congress in 2000.
186:"Precision Radar Surveillance and Mapping with Discoverer II", J. Koss, S. Pohleg, M. Trichel, W. Jeffrey, AIAA Space Technology Conference and Exposition, September 28–30, 1999. 610: 605: 189: 241: 145: 53: 88: 75: 123: 436: 251: 108: 195: 234: 376: 46: 40: 325: 57: 148:
images for high-resolution terrain mapping. When needed, constellation tasking could be directed by a deployed
141: 137: 330: 227: 579: 543: 130: 207: 491: 463: 390: 371: 180:, Permanent Select Committee on Intelligence, United States House of Representatives, June 27, 1996. 496: 455: 415: 219: 473: 468: 410: 405: 279: 519: 431: 366: 346: 116: 569: 201: 483: 149: 192:, Michael W. Roth, Johns Hopkins APL Technical Digest, vol. 20, no. 3, pages 297–304, 1999. 506: 156: 112: 136:
The Discoverer II constellation was envisioned to be 24 satellites, each configured with
160: 599: 299: 309: 304: 289: 20: 294: 284: 213: 183:"Discoverer II Program summary", D. Whelan, Radar Conference, February 2000. 190:
High-Resolution Interferometric Synthetic Aperture Radar for Discoverer II"
177: 164: 584: 574: 514: 548: 214:"Radar love: the tortured history of American space radar programs" 155:
On February 22, 1999, three contractor teams were selected, led by
446: 119:. The project began in 1998 but was canceled by Congress in 2000. 104: 87: 196:"NRO chief presses for system similar to cancelled Discoverer II" 564: 223: 25: 122:
The Discoverer II concept dates back to June 1996, when the
216:, Dwayne A. Day, The Space Review, January 22, 2007. 557: 536: 505: 482: 454: 445: 424: 398: 389: 359: 339: 318: 272: 265: 258: 178:Report by the DCI's Small Satellite Review Panel 235: 8: 92:Discoverer II System Parameters, DARPA, 1998 451: 395: 269: 262: 242: 228: 220: 611:National Reconnaissance Office satellites 76:Learn how and when to remove this message 39:This article includes a list of general 606:Lockheed Martin satellites and probes 198:, Aerospace Daily, September 7, 2000. 7: 45:it lacks sufficient corresponding 16:Canceled space-based radar project 14: 124:Director of Central Intelligence 30: 142:Ground Moving Target Indication 252:National Reconnaissance Office 111:project to build and launch a 109:National Reconnaissance Office 1: 627: 18: 138:Synthetic Aperture Radar 115:(LEO) constellation for 19:Not to be confused with 60:more precise citations. 93: 208:Discoverer II history 131:Defense Science Board 91: 152:tactical commander. 99:(initially known as 146:Interferometric SAR 250:Satellites of the 94: 593: 592: 532: 531: 528: 527: 464:Rhyolite/Aquacade 385: 384: 355: 354: 210:, Global Security 204:, Global Security 117:space-based radar 107:, Air Force, and 86: 85: 78: 618: 452: 396: 270: 263: 244: 237: 230: 221: 150:Joint Task Force 81: 74: 70: 67: 61: 56:this article by 47:inline citations 34: 33: 26: 626: 625: 621: 620: 619: 617: 616: 615: 596: 595: 594: 589: 553: 524: 501: 478: 441: 420: 381: 351: 335: 314: 254: 248: 174: 157:Lockheed Martin 113:low Earth orbit 82: 71: 65: 62: 52:Please help to 51: 35: 31: 24: 17: 12: 11: 5: 624: 622: 614: 613: 608: 598: 597: 591: 590: 588: 587: 582: 577: 572: 567: 561: 559: 555: 554: 552: 551: 546: 540: 538: 534: 533: 530: 529: 526: 525: 523: 522: 517: 511: 509: 503: 502: 500: 499: 494: 488: 486: 480: 479: 477: 476: 471: 466: 460: 458: 449: 443: 442: 440: 439: 434: 428: 426: 422: 421: 419: 418: 413: 408: 402: 400: 399:Radar location 393: 387: 386: 383: 382: 380: 379: 374: 369: 363: 361: 357: 356: 353: 352: 350: 349: 343: 341: 337: 336: 334: 333: 328: 322: 320: 316: 315: 313: 312: 310:Kennen/Crystal 307: 302: 297: 292: 287: 282: 276: 274: 267: 260: 256: 255: 249: 247: 246: 239: 232: 224: 218: 217: 211: 205: 199: 193: 187: 184: 181: 173: 170: 161:Spectrum Astro 159:Astronautics, 103:) was a joint 84: 83: 38: 36: 29: 15: 13: 10: 9: 6: 4: 3: 2: 623: 612: 609: 607: 604: 603: 601: 586: 583: 581: 578: 576: 573: 571: 568: 566: 563: 562: 560: 556: 550: 547: 545: 542: 541: 539: 537:Communication 535: 521: 518: 516: 513: 512: 510: 508: 504: 498: 495: 493: 490: 489: 487: 485: 481: 475: 472: 470: 467: 465: 462: 461: 459: 457: 453: 450: 448: 444: 438: 435: 433: 430: 429: 427: 425:Ship location 423: 417: 414: 412: 411:Chalet/Vortex 409: 407: 404: 403: 401: 397: 394: 392: 388: 378: 375: 373: 372:Lacrosse/Onyx 370: 368: 365: 364: 362: 358: 348: 345: 344: 342: 338: 332: 329: 327: 324: 323: 321: 317: 311: 308: 306: 303: 301: 298: 296: 293: 291: 288: 286: 283: 281: 278: 277: 275: 271: 268: 264: 261: 257: 253: 245: 240: 238: 233: 231: 226: 225: 222: 215: 212: 209: 206: 203: 200: 197: 194: 191: 188: 185: 182: 179: 176: 175: 171: 169: 166: 162: 158: 153: 151: 147: 143: 139: 134: 132: 127: 125: 120: 118: 114: 110: 106: 102: 98: 97:Discoverer II 90: 80: 77: 69: 59: 55: 49: 48: 42: 37: 28: 27: 22: 469:Magnum/Orion 154: 135: 128: 121: 100: 96: 95: 72: 63: 44: 21:Discoverer 2 58:introducing 600:Categories 558:Technology 172:References 140:(SAR) and 41:references 66:June 2019 492:Jumpseat 300:Gambit 3 295:Gambit 1 202:Starlite 101:STARLITE 575:USA-193 570:GeoLITE 515:Samos-F 497:Trumpet 416:Mercury 305:Hexagon 290:Lanyard 273:Keyhole 266:Optical 259:Imaging 54:improve 580:Colony 549:SLDCOM 474:Mentor 406:Canyon 391:SIGINT 280:Corona 163:, and 43:, but 520:Poppy 447:ELINT 432:Poppy 377:FIA-R 367:Quill 360:Radar 347:Samos 340:Other 326:Misty 319:Misty 285:Argon 105:DARPA 565:STEX 437:NOSS 129:The 585:RPP 544:SDS 507:LEO 484:HEO 456:GEO 331:EIS 165:TRW 602:: 243:e 236:t 229:v 79:) 73:( 68:) 64:( 50:. 23:.

Index

Discoverer 2
references
inline citations
improve
introducing
Learn how and when to remove this message

DARPA
National Reconnaissance Office
low Earth orbit
space-based radar
Director of Central Intelligence
Defense Science Board
Synthetic Aperture Radar
Ground Moving Target Indication
Interferometric SAR
Joint Task Force
Lockheed Martin
Spectrum Astro
TRW
Report by the DCI's Small Satellite Review Panel
High-Resolution Interferometric Synthetic Aperture Radar for Discoverer II"
"NRO chief presses for system similar to cancelled Discoverer II"
Starlite
Discoverer II history
"Radar love: the tortured history of American space radar programs"
v
t
e
National Reconnaissance Office

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