ASTROSAT CZTI

Data Quality Report

Orbit 14016

Creation date: 2024-06-27T16:49:11.475767
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/AS1G08_064T01_9000002070_14016cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14016cztM0_level2_quad_clean.evt
Size (bytes)617,313,600127,296,000
Size588.7 MB 121.4 MB
Events in quadrant A4,364,198806,976
Events in quadrant B4,489,443816,369
Events in quadrant C4,417,318813,670
Events in quadrant D4,806,122786,037

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190293
B0193652
C0190522
D0205792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01860
B01860
C01860
D01860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91111481.624410%
B91111942.129294%
C9111910.998793%
D91111061.163429%

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 9437 9116 8 8 0.08% 0.09%
B 9437 9116 0 0 0.00% 0.00%
C 9437 9116 2 2 0.02% 0.02%
D 9437 9116 25 25 0.26% 0.27%

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 14 111 37776 163.44 1098 1071 224.6
A 4 2 30245 129.91 1098 1071 224.6
A 8 15 29065 124.65 1098 1071 224.6
B 4 173 44172 204.64 1096 1068 210.6
B 0 214 42846 198.34 1096 1068 210.6
B 0 189 37456 172.75 1096 1068 210.6
C 3 233 155986 615.22 1083 1086 251.8
C 6 253 15351 56.66 1083 1086 251.8
C 8 128 13745 50.28 1083 1086 251.8
D 1 52 208570 791.55 1073 1043 262.2
D 8 195 205200 778.7 1073 1043 262.2
D 13 189 162365 615.32 1073 1043 262.2

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