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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255844 matches
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TRACE: blinkers

1999-03-20T06:55:51 to 1999-03-20T13:58:54

Science Goal: SCIPLAN_blinkers

Program: Try to bust the command memory buffer over the weekend without the benefit of HLZs

Target:

Pointing: xcen=-811 ycen=339,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
171	0.85	256,256	492
1600	0.76	256,256	558
1550	15.98	256,256	27

TRACE: AR8487

1999-03-17T13:05:20 to 1999-03-17T23:59:59

Science Goal: SCIPLAN_AR8487

Program:

Target:

Pointing: xcen=27 ycen=373,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
171	0.52	384,384	1259
WL	14.42	384,384	46
1600	14.42	384,384	46

TRACE: Kucera

1999-03-12T10:05:21 to 1999-03-12T15:59:47

Science Goal: SCIPLAN_Kucera

Program: JOP98, filament, disk coronalhole, intercal studies

Target:

Pointing: xcen=840 ycen=-396,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
171	1.41	512,512	251
1600	1.41	512,512	252
1550	1.42	512,512	249

TRACE: CORONAL HOLE

1999-02-25T00:50:46 to 1999-02-25T11:59:52

Science Goal: SCIPLAN_CORONAL_HOLE

Program: Coordination with SUMER, CDS, MDI

Target:

Pointing: xcen=-11 ycen=-992,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
171	15.74	512,512	43
1700	12.71	512,512	53
1600	12.71	512,512	53
1550	12.71	512,512	53
1216	0.61	512,512	1103

TRACE: Prom Fil

1999-02-04T06:18:52 to 1999-02-04T06:34:58

Science Goal: SCIPLAN_Prom_Fil

Program:

Target:

Pointing: xcen=-13 ycen=-81,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1550	0.19	512,512	87

IRIS: B1: AR tracking

2026-01-22T07:46:06 to 2026-01-22T08:04:12

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

Program: B1: AR tracking

Target: AR

Pointing: xcen=400 ycen=-134,

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

IRIS: Flare study on AR 14336 (following Hinode): Program C. Raster of ribbons and hot plasma

2026-01-12T10:08:01 to 2026-01-12T11:05:25

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

Program: Flare study on AR 14336 (following Hinode): Program C. Raster of ribbons and hot plasma

Target: AR

Pointing: xcen=359 ycen=-108,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.16	73,65	360

IRIS: Flare study on AR 14336 (following Hinode)

2026-01-09T20:42:20 to 2026-01-09T21:40:12

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=-196 ycen=-110,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	1524
2796	0.04	68,68	1524

IRIS: SUIT/Aditya-L1 coordination on AR 14324 (follow Hinode)

2026-01-03T03:02:19 to 2026-01-03T03:59:23

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

Program: SUIT/Aditya-L1 coordination on AR 14324 (follow Hinode)

Target: AR

Pointing: xcen=230 ycen=454,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.16	65,68	353
2796	0.16	65,68	352

IRIS: SUIT Coordination: Flare Catching Program

2025-12-31T00:40:36 to 2025-12-31T01:37:20

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: SUIT Coordination: Flare Catching Program

Target: AR

Pointing: xcen=-183 ycen=-232,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	1399
2796	0.04	68,68	1400

IRIS: Flare Ribbon Spatial/Temporal Analysis Study

2025-12-25T16:57:14 to 2025-12-25T17:49:28

Science Goal: Small sit-and-stare 0.3x30 1s

Program: Flare Ribbon Spatial/Temporal Analysis Study

Target: AR

Pointing: xcen=-215 ycen=226,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.3	61,65	174
2832	0.3	61,65	174
1400	0.3	61,65	174
2796	0.3	61,65	174

SOTSP: Synoptic

2025-12-22T17:57:12 to 2025-12-22T17:59:02

Science Goal: Synoptic

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

Target: Calibration, Synoptic

Pointing: xcen=1 ycen=7,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
6302A Continuum Intensity	0	14,162	47
6302A Velocity 6301.5A	0	14,162	47
6302A Transverse Flux Density	0	14,162	47
6302A Longitudinal Flux Density	0	14,162	47

IRIS: Low-telemetry flare watch

2025-12-22T14:35:15 to 2025-12-22T15:31:18

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=-265 ycen=368,

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

SOTSP: HOP 412 13/20

2025-12-18T22:13:06 to 2025-12-18T22:29:13

Science Goal: Synoptic SOT Latitudinal Scans (updated version of HOP79)

Program: Normal map 30 arcsec, Shorter Irradiance: DO NOT MODIFY!

Target: Quiet Sun

Pointing: xcen=-21 ycen=213,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
6302A Continuum Intensity	0	60,129	190
6302A Velocity 6301.5A	0	60,129	190
6302A Transverse Flux Density	0	60,129	190
6302A Longitudinal Flux Density	0	60,129	190

IRIS: High-cadence flare watch

2025-12-17T21:25:08 to 2025-12-17T22:21:29

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

Target: AR

Pointing: xcen=905 ycen=-242,

saaIntervals hiIntervals

wavelength	cadence	FOVx,y	images
1330	0.04	68,68	1484
2796	0.04	68,68	1484

255844 matches
prev 1...6705 6706 6707 6708 6709 6710 [6711] 6712 6713 6714 ...17057 next