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Orbits


Tyneside, UK
2023 Jan 29
Sunday, Day 29

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Primary source of unclassified orbital elements

Orbital elements based on amateur observations
Sun-synchronous Satellites - United States

This a list of satellites in sun-synchronous orbit operated by the USA. Names are not necessarily those by which they are known in the NORAD catalogue used by SpaceTrack.

It is a snapshot and is updated daily. The measure that results in an entry in this table is that the drift rate of LTDN (Local Time at the Descending Node) is no more than twenty four minutes each year. Some satellites may have higher drift rates but they may still be acceptable to their owners/operators. They do not appear here. On the converse, although a satellite is in a sun-synchronous orbit, it is not necessarily active.

Updated: 2023 Jan 28, 06:48 UTC

LTDN Satellite Cat
no
Desig- nation Orbit
Epoch
Orbit
09:54USA 320510752022-002CV2023 Jan 27526 x 530 km, 95.2 min, 97°.5
09:55USA 321510772022-002CX2023 Jan 27525 x 531 km, 95.2 min, 97°.5
09:55USA 322510782022-002CY2023 Jan 27526 x 530 km, 95.2 min, 97°.5
09:54USA 323510792022-002CZ2023 Jan 27526 x 530 km, 95.2 min, 97°.5
12:06USA 326514452022-009A2022 Sep 1489 x 516 km, 94.7 min, 97°.4
13:43ACRIMSat (Active Cavity Radiometer Irradiance Monitor Satellite)260331999-070B2023 Jan 27664 x 704 km, 98.4 min, 98°.2
18:34AMS 3 (DMSP 5D-1 F-3)108201978-042A2023 Jan 27765 x 780 km, 100.3 min, 98°.5
02:57AMS 4 (DMSP 5D-1 F-4)113891979-050A2023 Jan 27789 x 807 km, 100.8 min, 98°.5
01:21Amsat Echo (AO-51)283752004-025K2023 Jan 27693 x 809 km, 99.8 min, 98°.5
17:18ANDESITE (nonsensical acronym)457262020-037D2023 Jan 27576 x 596 km, 96.4 min, 97°.7
01:44Aqua (EOS PM-1)274242002-022A2023 Jan 27700 x 701 km, 98.8 min, 98°.3
10:36Arkyd 6A431302018-004V2023 Jan 27456 x 465 km, 93.8 min, 97°.3
10:04Athena462752020-061D2023 Jan 27507 x 510 km, 94.8 min, 97°.4
01:45Aura (EOS Chem-1)283762004-026A2023 Jan 27702 x 703 km, 98.8 min, 98°.2
09:46BlackSky 2 (Global 2)438122018-099BG2023 Jan 27567 x 583 km, 96.2 min, 97°.6
09:57Capella 7510722022-002CS2023 Jan 27502 x 513 km, 94.8 min, 97°.5
09:57Capella 8510712022-002CR2023 Jan 28501 x 513 km, 94.8 min, 97°.5
13:12Centauri 5527422022-057L2023 Jan 27508 x 518 km, 94.9 min, 97°.5
09:51Cesium 1A492612021-088B2023 Jan 27541 x 576 km, 95.8 min, 97°.6
09:53Cesium 1B492622021-088C2023 Jan 27543 x 572 km, 95.8 min, 97°.6
13:12Cicero-2 1 (Community Initiative for Cellular Earth Remote Observation)527412022-057K2023 Jan 27510 x 524 km, 95.0 min, 97°.5
13:11Cicero-2 2 (Community Initiative for Cellular Earth Remote Observation)527352022-057D2023 Jan 27511 x 523 km, 95.0 min, 97°.5
06:06COBE203221989-089A2023 Jan 27871 x 882 km, 102.5 min, 98°.9
06:05Coriolis276402003-001A2023 Jan 28818 x 838 km, 101.5 min, 98°.7
10:24Corvus BC3431182018-004H2023 Jan 27465 x 475 km, 94.0 min, 97°.3
09:55CuPID (Cusp Plasma Imaging Detector)492642021-088E2023 Jan 27541 x 569 km, 95.8 min, 97°.6
09:57CUTE (Colorado Ultraviolet Transit Experiment)492632021-088D2023 Jan 27537 x 564 km, 95.7 min, 97°.6
20:41DMSP 4A F-9 (Defense Meteorological Satellite Program)29201967-080A2023 Jan 27816 x 870 km, 101.8 min, 98°.8
19:57DMSP 5A F-1 (Defense Meteorological Satellite Program)32661968-042A2023 Jan 27804 x 878 km, 101.7 min, 98°.7
20:40DMSP 5A F-3 (Defense Meteorological Satellite Program)40471969-062A2023 Jan 27765 x 827 km, 100.8 min, 98°.6
19:14DMSP 5C F-1 (Defense Meteorological Satellite Program)74111974-063A2023 Jan 27767 x 828 km, 100.8 min, 98°.6
19:08DMSP 5C F-2 (Defense Meteorological Satellite Program)78161975-043A2023 Jan 27774 x 850 km, 101.1 min, 98°.7
07:27USA 73 (DMSP 5D-2 F-11)217981991-082A2023 Jan 27827 x 845 km, 101.6 min, 98°.8
05:59USA 109 (DMSP 5D-2 F-13)235331995-015A2023 Jan 27833 x 844 km, 101.7 min, 98°.8
17:54DMSP 5D-2 F-6 (Defense Meteorological Satellite Program)137361982-118A2023 Jan 27788 x 799 km, 100.7 min, 98°.6
17:57USA 26 (DMSP 5D-2 F-8)181231987-053A2023 Jan 27819 x 839 km, 101.5 min, 98°.7
09:02USA 106 (DMSP 5D-2 S-12)232331994-057A2023 Jan 27832 x 847 km, 101.7 min, 98°.9
06:27USA 191 (DMSP 5D-3 F-17)295222006-050A2023 Jan 27838 x 852 km, 101.8 min, 98°.8
04:00USA 210 (DMSP 5D-3 F-18)359512009-057A2023 Jan 27839 x 855 km, 101.9 min, 98°.8
05:50USA 249 (DMSP 5D-3 F-19)396302014-015A2023 Jan 27837 x 853 km, 101.8 min, 98°.7
14:39Dragracer (Augury)469552020-085AC2023 Jan 27485 x 504 km, 94.5 min, 97°.5
18:23Echostar Global 1462672020-059C2023 Jan 27586 x 595 km, 96.5 min, 97°.9
10:12Echostar Global 2462952020-061Z2023 Jan 27499 x 504 km, 94.6 min, 97°.4
00:14ESSA 220911966-016A2023 Jan 271355 x 1414 km, 113.4 min, 101°.2
02:18ESSA 836151968-114A2023 Jan 271414 x 1463 km, 114.6 min, 101°.5
09:30Flock 4Y-10550292023-001W2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-11550432023-001AL2023 Jan 27518 x 537 km, 95.2 min, 97°.5
09:31Flock 4Y-12550652023-001BJ2023 Jan 27515 x 537 km, 95.1 min, 97°.5
09:31Flock 4Y-13550792023-001BY2023 Jan 27513 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-14550242023-001R2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-15550682023-001BM2023 Jan 27514 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-16550402023-001AH2023 Jan 27518 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-17550312023-001Y2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-18550232023-001Q2023 Jan 27520 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-19550262023-001T2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:31Flock 4Y-2550742023-001BT2023 Jan 27514 x 536 km, 95.1 min, 97°.5
09:31Flock 4Y-20550632023-001BG2023 Jan 27514 x 537 km, 95.1 min, 97°.5
09:31Flock 4Y-21550772023-001BW2023 Jan 27513 x 536 km, 95.1 min, 97°.5
09:30Flock 4Y-22550222023-001P2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-23550802023-001BZ2023 Jan 27513 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-24550202023-001M2023 Jan 27520 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-25550272023-001U2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-26550702023-001BP2023 Jan 27514 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-27550832023-001CC2023 Jan 27513 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-28550332023-001AA2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-29550302023-001X2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-3550352023-001AC2023 Jan 27514 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-30550252023-001S2023 Jan 27519 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-31550782023-001BX2023 Jan 27513 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-32550212023-001N2023 Jan 27520 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-33550422023-001AK2023 Jan 27518 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-34550822023-001CB2023 Jan 27513 x 537 km, 95.1 min, 97°.5
09:30Flock 4Y-35550572023-001BA2023 Jan 27516 x 536 km, 95.2 min, 97°.5
09:30Flock 4Y-36550752023-001BU2023 Jan 27513 x 536 km, 95.1 min, 97°.5
09:30Flock 4Y-4550552023-001AY2023 Jan 27516 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-5550282023-001V2023 Jan 28518 x 537 km, 95.2 min, 97°.5
09:31Flock 4Y-6550662023-001BK2023 Jan 27515 x 536 km, 95.1 min, 97°.5
09:30Flock 4Y-7550322023-001Z2023 Jan 27518 x 537 km, 95.2 min, 97°.5
09:30Flock 4Y-8550712023-001BQ2023 Jan 27514 x 537 km, 95.1 min, 97°.5
09:31Flock 4Y-9550692023-001BN2023 Jan 27514 x 536 km, 95.1 min, 97°.5
05:29GAzelle540232022-127A2023 Jan 27744 x 762 km, 99.9 min, 98°.3
10:30Geoeye 1333312008-042A2023 Jan 27673 x 684 km, 98.3 min, 98°.1
18:24GNOMES 1 (GNSS Navigation and Occultation Measurement Satellite)462662020-059B2023 Jan 27595 x 604 km, 96.7 min, 97°.9
10:55GNOMES 3 (GNSS Navigation and Occultation Measurement Satellite)521582022-033B2023 Jan 27634 x 652 km, 97.6 min, 97°.9
13:11Hawk 5A (Alex Witko)527572022-057AB2023 Jan 27515 x 531 km, 95.1 min, 97°.5
13:10Hawk 5B (Josh Chavez)527562022-057AA2023 Jan 27515 x 531 km, 95.1 min, 97°.5
13:12Hawk 5C (Mina Shawky)527542022-057Y2023 Jan 27516 x 531 km, 95.1 min, 97°.5
14:18Hawkeye (Cluster 3 #2)489312021-059BE2023 Jan 27502 x 524 km, 94.9 min, 97°.6
14:22Hawkeye (Cluster 3 #1)489572021-059CG2023 Jan 27501 x 525 km, 94.9 min, 97°.6
13:13ICEYE X17527622022-057AG2023 Jan 27506 x 521 km, 94.9 min, 97°.5
13:11ICEYE X18527492022-057T2023 Jan 27512 x 526 km, 95.0 min, 97°.5
13:11ICEYE X19527582022-057AC2023 Jan 27510 x 529 km, 95.0 min, 97°.5
13:13ICEYE X20527592022-057AD2023 Jan 27506 x 521 km, 94.9 min, 97°.5
09:30ICEYE X21550492023-001AS2023 Jan 27517 x 537 km, 95.2 min, 97°.5
13:12ICEYE X24527552022-057Z2023 Jan 27508 x 520 km, 94.9 min, 97°.5
09:30ICEYE X27550622023-001BF2023 Jan 27515 x 537 km, 95.2 min, 97°.5
10:03ION SCV-001 (Lucas)462742020-061C2023 Jan 27503 x 513 km, 94.8 min, 97°.4
09:52ION SCV-004 (Elysian Eleonora)509932022-002K2023 Jan 27520 x 533 km, 95.2 min, 97°.5
09:30ION SCV-008 (Fierce Franciscus)550512023-001AU2023 Jan 27517 x 539 km, 95.2 min, 97°.5
17:27IRAS137771983-004A2023 Jan 27879 x 906 km, 102.8 min, 99°.0
17:59IRIS (Interface Region Imaging Spectrometer)391972013-033A2023 Jan 27611 x 650 km, 97.3 min, 98°.0
09:34ITOS 143201970-008A2023 Jan 271434 x 1478 km, 115.0 min, 101°.6
01:25Joint Polar Satellite System 2 (NOAA 21)542342022-150A2023 Jan 27826 x 828 km, 101.4 min, 98°.7
08:05USA 186 (KH- 11 Block-4 F1?/Crystal)288882005-042A2023 Jan 11401 x 441 km, 93.0 min, 97°.1
09:44USA 245 (KH-11 Block-4 F3?/Crystal)392322013-043A2022 Oct 7267 x 1030 km, 97.7 min, 97°.9
13:03USA 314 (KH-11 Block-5 F-2/Crystal)482472021-032A2022 Sep 12549 x 773 km, 97.9 min, 98°.0
10:12Landsat 8 (Landsat Data Continuity Mission)390842013-008A2023 Jan 27702 x 703 km, 98.8 min, 98°.2
10:12Landsat 9492602021-088A2023 Jan 27702 x 703 km, 98.8 min, 98°.2
09:58Lemur-2 (Miriwari)510542022-002BY2023 Jan 27505 x 516 km, 94.8 min, 97°.5
09:57Lemur-2 (Djirang)510582022-002CC2023 Jan 27505 x 516 km, 94.8 min, 97°.5
09:30Lemur-2 (Philari)550132023-001E2023 Jan 27520 x 536 km, 95.2 min, 97°.5
09:30Lemur-2 (Disclaimer)550142023-001F2023 Jan 27519 x 536 km, 95.2 min, 97°.5
09:30Lemur-2 (SteveAlbers)550172023-001J2023 Jan 27520 x 536 km, 95.2 min, 97°.5
09:31Lemur-2 (Mmolo)550382023-001AF2023 Jan 27511 x 535 km, 95.1 min, 97°.5
09:31Lemur-2 (Fuentetaja-01)550882023-001CH2023 Jan 27512 x 536 km, 95.1 min, 97°.5
13:13Lemur-2 + Hancom payload (Sejong 1)527402022-057J2023 Jan 27508 x 522 km, 94.9 min, 97°.5
09:58Lemur-2 + OroraTech 1 (Rohovithsa)510362022-002BE2023 Jan 27505 x 517 km, 94.8 min, 97°.5
10:12LKW-2 (Land Survey Satellite 2)430802017-084A2023 Jan 28495 x 497 km, 94.5 min, 97°.3
10:53Lynk Tower 1521622022-033F2023 Jan 27489 x 501 km, 94.5 min, 97°.4
09:30Lynk Tower 3550462023-001AP2023 Jan 27518 x 537 km, 95.2 min, 97°.5
09:30Lynk Tower 4550342023-001AB2023 Jan 27519 x 538 km, 95.2 min, 97°.5
01:53MSX238511996-024A2023 Jan 27894 x 906 km, 103.0 min, 98°.9
09:30multiple satellites (2023-001 launch)550092023-001xx2023 Jan 27522 x 538 km, 95.2 min, 97°.5
22:55Nimbus 3 (Nimbus B2)38901969-037A2023 Jan 271070 x 1130 km, 107.3 min, 99°.8
23:55Nimbus 4 (Nimbus D)43621970-025A2023 Jan 271086 x 1098 km, 107.1 min, 100°.0
23:19Nimbus 5 (Nimbus E)63051972-097A2023 Jan 271088 x 1100 km, 107.1 min, 99°.9
23:20Nimbus 6 (Nimbus F)79241975-052A2023 Jan 271101 x 1112 km, 107.4 min, 100°.1
09:35NOAA 1 (ITOS A)47931970-106A2023 Jan 271423 x 1472 km, 114.8 min, 101°.5
03:27NOAA 5 (ITOS H)90571976-077A2023 Jan 281508 x 1524 km, 116.3 min, 102°.1
06:28NOAA 6114161979-057A2023 Jan 27772 x 786 km, 100.4 min, 98°.7
05:03NOAA 8139231983-022A2023 Jan 27785 x 805 km, 100.8 min, 98°.7
04:33NOAA 10169691986-073A2023 Jan 27788 x 807 km, 100.8 min, 98°.6
05:18NOAA 12212631991-032A2023 Jan 27795 x 815 km, 101.0 min, 98°.5
07:29NOAA 15253381998-030A2023 Jan 27797 x 812 km, 101.0 min, 98°.6
01:55NOAA 17274532002-032A2023 Jan 27800 x 816 km, 101.0 min, 98°.7
10:24NOAA 18286542005-018A2023 Jan 28839 x 860 km, 101.9 min, 98°.9
01:25NOAA 20 (JPSS, Joint Polar Satellite System 1)430132017-073A2023 Jan 27826 x 828 km, 101.4 min, 98°.7
01:36OCO 2 (Orbiting Carbon Observatory)400592014-035A2023 Jan 27701 x 704 km, 98.8 min, 98°.2
09:59Orbcomm-X (Orbcomm-X)215761991-050C2023 Jan 27750 x 754 km, 99.9 min, 98°.5
13:13Pathfinder Technology Demonstrator 3 (PTD-3)527342022-057C2023 Jan 27498 x 506 km, 94.7 min, 97°.5
00:17Perseus-M 1400392014-033AF2023 Jan 27596 x 617 km, 96.8 min, 97°.9
00:28Perseus-M 2400372014-033AD2023 Jan 27594 x 616 km, 96.8 min, 97°.9
06:04QuakeSat278452003-031F2023 Jan 27810 x 822 km, 101.2 min, 98°.7
20:00USA 216 (SBSS)371682010-048A2023 Jan 27621 x 624 km, 97.2 min, 97°.9
22:38SECOR 13 (EGRS 13)38911969-037B2023 Jan 271069 x 1128 km, 107.2 min, 99°.8
13:11Sherpa AC-1527632022-057AH2023 Jan 27514 x 533 km, 95.1 min, 97°.5
14:22Sherpa FX-2489582021-059CH2023 Jan 27502 x 526 km, 94.9 min, 97°.6
10:04Skysat 1394182013-066C2023 Jan 27542 x 587 km, 95.9 min, 97°.5
10:22Skysat 3 (Skysat C1)416012016-040C2023 Jan 27450 x 452 km, 93.6 min, 97°.1
09:46Skysat 5 (Skysat C3)417742016-058E2023 Jan 27434 x 437 km, 93.3 min, 97°.1
09:33Skysat 7 (Skysat C5)417722016-058C2023 Jan 27477 x 480 km, 94.2 min, 97°.2
13:41Skysat 8 (Skysat C6)429922017-068F2023 Jan 27451 x 453 km, 93.6 min, 97°.3
13:39Skysat 9 (Skysat C7)429912017-068E2023 Jan 27450 x 453 km, 93.6 min, 97°.3
13:38Skysat 10 (Skysat C8)429902017-068D2023 Jan 27451 x 452 km, 93.6 min, 97°.3
13:33Skysat 11 (Skysat C9)429892017-068C2023 Jan 27450 x 453 km, 93.6 min, 97°.3
13:37Skysat 12 (Skysat C10)429882017-068B2023 Jan 27451 x 453 km, 93.6 min, 97°.3
13:35Skysat 13 (Skysat C11)429872017-068A2023 Jan 27450 x 453 km, 93.6 min, 97°.3
09:44Skysat 14 (Skysat C12)437972018-099AR2023 Jan 27449 x 452 km, 93.6 min, 97°.1
09:42SkySat 15 (Skysat C13)438022018-099AW2023 Jan 27440 x 442 km, 93.4 min, 97°.1
05:58SMAP (Soil Moisture Active Passive)403762015-003A2023 Jan 27681 x 683 km, 98.4 min, 98°.1
11:00Spark 1 (LEO 1)521572022-033A2023 Jan 27620 x 639 km, 97.3 min, 97°.9
13:11Spark 2 (Omni LEO 2)527712022-057AR2023 Jan 27528 x 552 km, 95.4 min, 97°.5
13:59Starlink 3003488792021-059A2023 Jan 27560 x 561 km, 95.9 min, 97°.5
13:59Starlink 3004488802021-059B2023 Jan 27560 x 561 km, 95.9 min, 97°.5
13:59Starlink 3005488812021-059C2023 Jan 27560 x 561 km, 95.9 min, 97°.5
17:36Starlink 4362530432022-077A2023 Jan 27563 x 563 km, 95.9 min, 97°.7
09:36Starlink 4391531892022-084A2023 Jan 27562 x 564 km, 95.9 min, 97°.7
13:36Starlink 4415534652022-099A2023 Jan 27563 x 563 km, 95.9 min, 97°.7
21:36Starlink 4622536482022-105A2023 Jan 27562 x 564 km, 95.9 min, 97°.7
09:55STPSat-5437622018-099E2023 Jan 27564 x 581 km, 96.1 min, 97°.6
12:04USA 205 (STSS-ATRR)349032009-023A2022 Sep 12864 x 877 km, 102.4 min, 98°.9
01:26Suomi NPP (Suomi National Polar-orbiting Partnership)378492011-061A2023 Jan 27826 x 828 km, 101.4 min, 98°.8
14:22Tenzing (Tanker-001)489512021-059CA2023 Jan 27503 x 527 km, 94.9 min, 97°.6
10:11Terra (EOS AM-1)259941999-068A2023 Jan 27695 x 698 km, 98.7 min, 98°.1
13:16TIROS 1014301965-051A2023 Jan 27717 x 797 km, 100.0 min, 98°.4
08:53TIROS-N110601978-096A2023 Jan 27823 x 838 km, 101.5 min, 98°.6
14:24TOMS-EP239401996-037A2023 Jan 27685 x 726 km, 98.9 min, 98°.4
23:36TOPO 143631970-025B2023 Jan 271083 x 1087 km, 106.9 min, 99°.9
17:58TRACE252801998-020A2023 Jan 27496 x 524 km, 94.8 min, 97°.5
14:06Umbra 01489062021-059AD2023 Jan 27507 x 515 km, 94.8 min, 97°.6
10:00Umbra 02509862022-002C2023 Jan 27508 x 517 km, 94.9 min, 97°.5
13:08Umbra 03527532022-057X2023 Jan 27524 x 529 km, 95.2 min, 97°.5
13:13Varisat 1C (Celestis 21)527662022-057AL2023 Jan 27508 x 528 km, 95.0 min, 97°.5
13:14Veery Hatchling (Veery FS-1)527772022-057AX2023 Jan 27500 x 519 km, 94.8 min, 97°.5
13:11Vigoride 3527602022-057AE2023 Jan 27516 x 534 km, 95.1 min, 97°.5
09:30Vigoride 5550562023-001AZ2023 Jan 27516 x 537 km, 95.2 min, 97°.5
07:44WISE (Wide Field IR Explorer)361192009-071A2023 Jan 27453 x 456 km, 93.7 min, 97°.2
13:29WorldView 1320602007-041A2023 Jan 27488 x 496 km, 94.4 min, 97°.4
10:32WorldView 2359462009-055A2023 Jan 27766 x 768 km, 100.2 min, 98°.5
10:30Worldview 3401152014-048A2023 Jan 27611 x 615 km, 97.0 min, 97°.8
09:21XR-1475072021-006CY2023 Jan 27505 x 515 km, 94.8 min, 97°.4
14:17YAM 3 (Yet Another Mission)489152021-059AN2023 Jan 27510 x 527 km, 95.0 min, 97°.6

For the satellites that do not have formal published elements, thanks go to the radio and visual amateur satellite trackers for their observing, and particularly to Mike McCants for archiving the derived orbits.

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