ASTROSAT CZTI

Data Quality Report

Orbit 22586

Creation date: 2024-06-27T18:43:10.348743
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/AS1C05_002T01_9000003352_22586cztM0_level2.evt modeM0/AS1C05_002T01_9000003352_22586cztM0_level2_quad_clean.evt
Size (bytes)251,850,24065,306,880
Size240.2 MB 62.3 MB
Events in quadrant A1,526,050435,432
Events in quadrant B1,549,528443,079
Events in quadrant C1,558,183427,997
Events in quadrant D2,744,704413,701

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072900
B073100
C073040
D0107450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A363840.109951%
B363950.137400%
C363940.109920%
D3639641.758725%

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 3638 3638 0 0 0.00% 0.00%
B 3639 3639 2 2 0.05% 0.05%
C 3639 3639 0 0 0.00% 0.00%
D 3639 3639 82 82 2.25% 2.25%

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 13 254 5689 65.67 394 386 80.7
A 11 47 4201 47.24 394 386 80.7
A 3 137 3470 38.19 394 386 80.7
B 5 172 10872 137.12 393 383 76.5
B 12 111 9302 116.6 393 383 76.5
B 11 111 8322 103.79 393 383 76.5
C 14 238 60201 673.08 377 381 88.9
C 8 128 7595 81.17 377 381 88.9
C 2 16 5062 52.67 377 381 88.9
D 12 227 1060204 11514.24 377 367 92.0
D 1 52 251148 2724.52 377 367 92.0
D 2 234 16002 169.86 377 367 92.0

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