ASTROSAT CZTI

Data Quality Report

Orbit 31580

Creation date: 2024-06-27T20:30:11.603752
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_082T10_9000004602_31580cztM0_level2.evt modeM0/AS1A10_082T10_9000004602_31580cztM0_level2_quad_clean.evt
Size (bytes)158,299,20014,532,480
Size151.0 MB 13.9 MB
Events in quadrant A873,65383,023
Events in quadrant B1,432,49582,442
Events in quadrant C940,73177,409
Events in quadrant D1,433,85975,962

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035401
B052701
C037711
D054771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1632130.796569%
B1632452.757353%
C1632432.634804%
D1632674.105392%

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 1632 1632 0 0 0.00% 0.00%
B 1632 1632 9 9 0.55% 0.55%
C 1632 1632 0 0 0.00% 0.00%
D 1632 1632 29 29 1.78% 1.78%

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 3279 64.12 226 220 47.7
A 3 137 2194 41.38 226 220 47.7
A 0 226 1879 34.78 226 220 47.7
B 6 159 445640 10206.42 221 216 43.6
B 4 80 79614 1819.32 221 216 43.6
B 0 137 18067 409.04 221 216 43.6
C 14 238 35334 662.88 216 217 53.0
C 4 175 23754 444.29 216 217 53.0
C 3 233 23432 438.22 216 217 53.0
D 8 195 287259 5381.95 217 210 53.3
D 2 250 254833 4773.99 217 210 53.3
D 13 249 16082 297.59 217 210 53.3

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