ASTROSAT CZTI

Data Quality Report

Orbit 29556

Creation date: 2024-06-27T20:05:22.624930
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_094T10_9000004262_29556cztM0_level2.evt modeM0/AS1A10_094T10_9000004262_29556cztM0_level2_quad_clean.evt
Size (bytes)168,721,92032,607,360
Size160.9 MB 31.1 MB
Events in quadrant A766,890228,673
Events in quadrant B803,567237,381
Events in quadrant C848,779214,528
Events in quadrant D2,587,685196,317

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031891
B033181
C034481
D087451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A148380.539447%
B1483100.674309%
C14831369.170600%
D148322014.834794%

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 1483 1483 0 0 0.00% 0.00%
B 1483 1483 2 2 0.13% 0.13%
C 1483 1483 0 0 0.00% 0.00%
D 1483 1483 341 341 22.99% 22.99%

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 8 192 3821 88.32 196 193 41.1
A 13 254 3298 75.59 196 193 41.1
A 14 239 2790 63.22 196 193 41.1
B 0 199 6091 150.27 199 194 39.2
B 0 189 5985 147.57 199 194 39.2
B 5 255 5483 134.78 199 194 39.2
C 14 238 67838 1568.31 178 179 43.1
C 14 254 52290 1207.91 178 179 43.1
C 3 233 22116 508.49 178 179 43.1
D 8 195 1816011 41244.81 178 173 44.0
D 13 153 45544 1030.55 178 173 44.0
D 5 233 16219 364.47 178 173 44.0

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