Popular

Heliophysics Events Knowledgebase Coverage Registry (HCR)

Popular Observations

Here are the most popular observations, as measured by the number of downloads.

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252442 matches
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IRIS: BBSO coordination, AR14341

2026-01-20T18:34:53 to 2026-01-20T19:33:17

Science Goal: Large coarse 8-step raster 14x120 8s Si IV Mg II h/k Mg II w s Deep x 4 FUV spectrally rebinned x 4 SJI cadence 0.5x faster

Program: BBSO coordination, AR14341

Target: AR

Pointing: xcen=61 ycen=-75,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
2832	2.09	133,130	28
1400	0.35	133,130	168
2796	0.35	133,130	168

IRIS: BBSO coordination, AR14341

2026-01-19T19:57:00 to 2026-01-19T20:55:24

Science Goal: Large coarse 8-step raster 14x120 8s Si IV Mg II h/k Mg II w s Deep x 4 FUV spectrally rebinned x 4 SJI cadence 0.5x faster

Program: BBSO coordination, AR14341

Target: AR

Pointing: xcen=-142 ycen=-75,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
2832	2.09	133,130	28
1400	0.35	133,130	168
2796	0.35	133,130	168

IRIS: High-cadence flare study, AR14341

2026-01-18T14:51:09 to 2026-01-18T15:28:46

Science Goal: Medium sparse 8-step raster 7x60 8s C II Mg II h/k Deep x 0.5 Spatial x 2, Spectral x 2 SJI cadence 3x faster

Program: High-cadence flare study, AR14341

Target: AR

Pointing: xcen=-361 ycen=-105,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	928
2796	0.04	68,68	928

IRIS: A1: QS monitoring

2026-01-17T04:55:20 to 2026-01-17T05:13:24

Science Goal: Large coarse 64-step raster 126x120 64s C II Si IV Mg II h/k Mg II w s Deep x 15 SJI cadence 0.5x faster

Program: A1: QS monitoring

Target: QS

Pointing: xcen=-90 ycen=32,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	1.13	247,130	16
2832	4.52	247,130	4
1400	1.13	247,130	16
2796	1.13	247,130	16

IRIS: Flare study on AR 14336 (following Hinode)

2026-01-09T15:51:17 to 2026-01-09T16:49:00

Science Goal: Medium sparse 8-step raster 7x60 8s C II Mg II h/k Deep x 0.5 Spatial x 2, Spectral x 2 SJI cadence 3x faster

Program: Flare study on AR 14336 (following Hinode)

Target: AR

Pointing: xcen=-246 ycen=-116,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	1520
2796	0.04	68,68	1520

IRIS: Flare study on AR 14334 (not following Hinode on AR 14336)

2026-01-09T11:00:21 to 2026-01-09T11:58:22

Science Goal: Medium sparse 8-step raster 7x60 8s C II Mg II h/k Deep x 0.5 Spatial x 2, Spectral x 2 SJI cadence 3x faster

Program: Flare study on AR 14334 (not following Hinode on AR 14336)

Target: AR

Pointing: xcen=167 ycen=-212,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	1528
2796	0.04	68,68	1528

IRIS: SUIT/Aditya-L1 coordination on near-disk-center AR 14334

2026-01-09T01:18:32 to 2026-01-09T02:15:11

Science Goal: Very large coarse 64-step raster 126x175 64s Si IV Mg II h/k Mg II w s Spatial x 4, Spectral x 4

Program: SUIT/Aditya-L1 coordination on near-disk-center AR 14334

Target: AR

Pointing: xcen=71 ycen=-203,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
2832	1.05	289,182	54
1400	0.26	289,182	216
2796	0.26	289,182	216

IRIS: B1: AR tracking (limb-to-limb), on new AR 14336

2026-01-08T07:31:29 to 2026-01-08T07:49:34

Science Goal: Large coarse 64-step raster 126x120 64s Deep x 15 SJI cadence 3x faster Lossless compression

Program: B1: AR tracking (limb-to-limb), on new AR 14336

Target: AR

Pointing: xcen=-535 ycen=-113,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	1.13	247,130	16
2832	1.13	247,130	16
1400	1.13	247,130	16
2796	1.13	247,130	16

SOTSP: Synoptic

2025-12-28T17:52:42 to 2025-12-28T17:54:31

Science Goal: Synoptic

Program: Synoptic Very Fast Map, 15"x162", 3 mins.

Target: Calibration, Synoptic

Pointing: xcen=0 ycen=7,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
6302A Continuum Intensity	0	16,162	50
6302A Velocity 6301.5A	0	16,162	50
6302A Transverse Flux Density	0	16,162	50
6302A Longitudinal Flux Density	0	16,162	50

SOTSP: HOP 485 South 60 deg.

2025-12-25T12:04:06 to 2025-12-25T14:57:40

Science Goal: High-latitude magnetic field evolution during the sunspot cycle

Program: Fast deep mode, 2048 slit position, LIMB ONLY

Target: South Pole

Pointing: xcen=-20 ycen=-859,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
6302A Continuum Intensity	0	321,162	1020
6302A Velocity 6301.5A	0	321,162	1020
6302A Transverse Flux Density	0	321,162	1020
6302A Longitudinal Flux Density	0	321,162	1020

XRT: null

2025-12-24T22:55:59 to 2025-12-25T02:09:48

Science Goal:

Program:

Target:

Pointing: xcen=-448 ycen=154,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
Be_thin+Open	17.79	395,395	8
Open+Gband	32.75	396,396	6
Open+Ti_poly	81.86	395,395	3
Al_poly+Open	16.56	395,395	10

IRIS: B2: QS tracking from limb to limb

2025-12-23T08:22:47 to 2025-12-23T08:32:23

Science Goal: Coarse synoptic raster 34x175 18s Deep x 30 SJI cadence 3x faster Lossless compression

Program: B2: QS tracking from limb to limb

Target: QS

Pointing: xcen=-643 ycen=-447,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	3.2	203,182	3
2832	3.2	203,182	3
1400	3.2	203,182	3
2796	3.2	203,182	3

IRIS: B2: QS tracking from limb to limb

2025-12-21T05:06:26 to 2025-12-21T05:16:02

Science Goal: Coarse synoptic raster 34x175 18s Deep x 30 SJI cadence 3x faster Lossless compression

Program: B2: QS tracking from limb to limb

Target: QS

Pointing: xcen=-506 ycen=-345,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	3.2	203,182	3
2832	3.2	203,182	3
1400	3.2	203,182	3
2796	3.2	203,182	3

IRIS: Low-telemetry flare watch

2025-12-18T10:20:58 to 2025-12-18T11:17:01

Science Goal: Medium sit-and-stare 0.3x60 1s C II Si IV Mg II h/k Deep x 8 Spatial x 2, Spectral x 2

Program: Low-telemetry flare watch

Target: AR

Pointing: xcen=922 ycen=-247,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.46	62,68	122
1400	0.46	62,68	122
2796	0.46	62,68	122

IRIS: Limb AR watch / PSP Coordination

2025-12-13T15:24:23 to 2025-12-13T16:29:27

Science Goal: Medium coarse 8-step raster 14x60 8s C II Deep x 8 FUV spectrally rebinned x 2

Program: Limb AR watch / PSP Coordination

Target: AR

Pointing: xcen=976 ycen=-261,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.16	73,65	408

252442 matches
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