ASTROSAT CZTI

Data Quality Report

Orbit 28380

Creation date: 2024-06-27T19:51:09.440589
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/AS1A10_101T02_9000004084_28380cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28380cztM0_level2_quad_clean.evt
Size (bytes)167,984,64041,564,160
Size160.2 MB 39.6 MB
Events in quadrant A1,040,168281,617
Events in quadrant B1,098,596283,791
Events in quadrant C1,001,204269,520
Events in quadrant D1,792,920261,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045880
B047270
C045260
D069450

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2242100.446030%
B224230.133809%
C224270.312221%
D2242562.497770%

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 2242 2242 6 6 0.27% 0.27%
B 2242 2242 1 1 0.04% 0.04%
C 2242 2242 0 0 0.00% 0.00%
D 2242 2242 47 47 2.10% 2.10%

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 15 174 28358 524.55 259 254 53.6
A 12 96 8109 146.61 259 254 53.6
A 13 254 3952 69.02 259 254 53.6
B 10 245 81120 1607.7 252 247 50.3
B 4 200 9907 192.03 252 247 50.3
B 0 230 9302 180.01 252 247 50.3
C 14 238 38509 661.97 242 244 57.8
C 7 220 15257 259.72 242 244 57.8
C 0 207 1816 27.2 242 244 57.8
D 8 195 692212 11485.76 247 241 60.2
D 2 250 81757 1353.05 247 241 60.2
D 1 52 65762 1087.56 247 241 60.2

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