ASTROSAT CZTI

Data Quality Report

Orbit 05529

Creation date: 2024-06-27T14:56:20.892284
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/AS1G06_084T01_9000000710_05529cztM0_level2.evt modeM0/AS1G06_084T01_9000000710_05529cztM0_level2_quad_clean.evt
Size (bytes)123,125,76023,244,480
Size117.4 MB 22.2 MB
Events in quadrant A827,106150,516
Events in quadrant B953,740150,955
Events in quadrant C791,856151,975
Events in quadrant D1,054,692142,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0334910
B0392027
C0324913
D0413726

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0302

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1462825.608755%
B1455704.810997%
C1460443.013699%
D14581107.544582%

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 2725 1467 3 3 0.11% 0.20%
B 2725 1467 0 0 0.00% 0.00%
C 2725 1467 0 0 0.00% 0.00%
D 2725 1467 50 50 1.83% 3.41%

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 0 50 11080 238.65 210 205 45.6
A 7 16 4276 89.34 210 205 45.6
A 0 226 2114 41.89 210 205 45.6
B 15 204 91131 2133.36 208 202 42.6
B 5 6 21021 488.45 208 202 42.6
B 11 51 16100 373.0 208 202 42.6
C 1 16 8825 180.75 200 200 47.7
C 13 61 1644 30.26 200 200 47.7
C 1 241 1160 20.12 200 200 47.7
D 12 233 165422 3235.27 201 195 51.1
D 2 152 58280 1137.35 201 195 51.1
D 2 63 38381 747.71 201 195 51.1

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