ASTROSAT CZTI

Data Quality Report

Orbit 10806

Creation date: 2024-06-27T16:04:38.986886
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_003T02_9000001564_10806cztM0_level2.evt modeM0/AS1G07_003T02_9000001564_10806cztM0_level2_quad_clean.evt
Size (bytes)1,016,971,200124,136,640
Size969.9 MB 118.4 MB
Events in quadrant A9,733,330711,679
Events in quadrant B8,852,823730,518
Events in quadrant C5,328,214753,539
Events in quadrant D6,067,099726,277

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02440
B02440
C02440
D02440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370465
B0343242
C0245264
D0264664

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1210710478.647890%
B121089417.771721%
C12107660.545139%
D12107990.817709%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 13633 12110 760 760 5.57% 6.28%
B 13633 12109 542 542 3.98% 4.48%
C 13633 12110 0 0 0.00% 0.00%
D 13633 12110 34 34 0.25% 0.28%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 5 4270776 15709.73 1338 1306 271.8
A 4 2 283303 1037.62 1338 1306 271.8
A 8 15 12815 42.35 1338 1306 271.8
B 4 239 3177876 12319.47 1357 1323 257.8
B 15 204 254129 980.44 1357 1323 257.8
B 0 214 66473 252.67 1357 1323 257.8
C 8 128 13203 37.73 1357 1365 313.8
C 13 61 10032 27.62 1357 1365 313.8
C 8 222 8689 23.34 1357 1365 313.8
D 13 138 325373 1002.29 1345 1306 323.3
D 8 195 200383 615.71 1345 1306 323.3
D 1 52 102253 312.21 1345 1306 323.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter