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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252800 matches
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IRIS: B2: QS tracking form limb to limb

2026-06-11T05:17:22 to 2026-06-11T05:26:57

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

Program: B2: QS tracking form limb to limb

Target: QS

Pointing: xcen=-598 ycen=-158,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	3.2	204,182	3
2832	3.2	204,182	3
1400	3.2	204,182	3
2796	3.2	204,182	3

IRIS: PSP coordination

2026-06-10T18:23:45 to 2026-06-10T18:51:00

Science Goal: Very large dense 320-step raster 105.3x175 320s Si IV Mg II h/k Deep x 4 Spatial x 2, Spectral x 2

Program: PSP coordination

Target: (NONE)

Pointing: xcen=207 ycen=-144,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1400	0.17	281,182	160
2796	0.17	281,182	160

IRIS: Flare study AR4464

2026-06-10T04:47:49 to 2026-06-10T07:16:40

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 AR4464

Target: AR

Pointing: xcen=-138 ycen=-207,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	3920
2796	0.04	68,68	3920

IRIS: A1: QS monitoring

2026-06-10T04:20:04 to 2026-06-10T04:38:08

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=0 ycen=3,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	1.13	247,129	16
2832	4.52	247,129	4
1400	1.13	247,129	16
2796	1.13	247,129	16

IRIS: Limb-to-limb tracking of ARs IHOP 307

2026-06-21T02:48:10 to 2026-06-21T03:37:07

Science Goal: Very large dense 320-step raster 105.3x175 320s Deep x 8 Spatial x 2, Spectral x 2

Program: Limb-to-limb tracking of ARs IHOP 307

Target: AR

Pointing: xcen=-202 ycen=85,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.61	259,179	63
2832	0.61	259,179	62
1400	0.61	259,179	62
2796	0.61	259,179	63

252800 matches
prev 1...16849 16850 16851 16852 16853 [16854]