ASTROSAT CZTI

Data Quality Report

Orbit 19093

Creation date: 2024-06-27T17:58:59.135961
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/AS1T03_098T01_9000002836_19093cztM0_level2.evt modeM0/AS1T03_098T01_9000002836_19093cztM0_level2_quad_clean.evt
Size (bytes)116,925,12027,809,280
Size111.5 MB 26.5 MB
Events in quadrant A753,582184,095
Events in quadrant B867,014189,399
Events in quadrant C795,381182,605
Events in quadrant D1,020,438174,370

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032341
B034911
C033041
D040531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A150190.599600%
B1501513.397735%
C1501473.131246%
D1501493.264490%

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 2766 1502 0 0 0.00% 0.00%
B 2766 1502 5 5 0.18% 0.33%
C 2766 1502 0 0 0.00% 0.00%
D 2766 1502 13 13 0.47% 0.87%

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 1750 37.24 195 191 41.9
A 0 226 1685 35.69 195 191 41.9
A 12 194 1461 30.34 195 191 41.9
B 3 112 62340 1573.97 199 194 39.5
B 0 189 5729 140.18 199 194 39.5
B 10 245 4845 117.8 199 194 39.5
C 14 238 30364 647.11 193 194 46.6
C 7 220 4648 95.53 193 194 46.6
C 5 112 3323 67.11 193 194 46.6
D 7 238 144086 2988.3 190 183 48.2
D 1 52 106034 2198.11 190 183 48.2
D 11 176 40401 835.17 190 183 48.2

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