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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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IRIS: High-cadence Flare Watch of AR14419

2026-04-19T05:45:23 to 2026-04-19T08:43:35

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 Watch of AR14419

Target: AR

Pointing: xcen=26 ycen=300,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	70,66	173
2796	0.04	70,66	173

IRIS: B1: AR Tracking from Limb to Limb

2026-04-19T04:59:04 to 2026-04-19T05:17:09

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

Program: B1: AR Tracking from Limb to Limb

Target: AR

Pointing: xcen=850 ycen=321,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	1.13	251,131	16
2832	1.13	251,131	16
1400	1.13	251,131	16
2796	1.13	251,131	16

IRIS: B2: QS Tracking from Limb to Limb

2026-04-19T04:39:17 to 2026-04-19T04:48:52

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=779 ycen=555,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	3.2	206,179	3
2832	3.2	206,179	3
1400	3.2	206,179	3
2796	3.2	206,179	3

IRIS: A1: QS Monitoring

2026-04-19T04:09:55 to 2026-04-19T04:27:58

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=2 ycen=-4,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	1.13	251,131	16
2832	4.52	251,131	4
1400	1.13	251,131	16
2796	1.13	251,131	16

IRIS: Coronal Nanojet Study of AR14416

2026-04-19T02:40:17 to 2026-04-19T03:59:21

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

Program: Coronal Nanojet Study of AR14416

Target: AR

Pointing: xcen=908 ycen=332,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.16	73,64	495

250460 matches
prev 1...16697 [16698]