ASTROSAT CZTI

Data Quality Report

Orbit 32056

Creation date: 2024-06-27T20:35:56.917376
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_109T01_9000004682_32056cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32056cztM0_level2_quad_clean.evt
Size (bytes)824,307,840124,070,400
Size786.1 MB 118.3 MB
Events in quadrant A4,606,700808,560
Events in quadrant B7,748,294784,911
Events in quadrant C5,060,952766,002
Events in quadrant D6,909,301741,491

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0197432
B0298542
C0210522
D0267782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9463520.549509%
B94632712.863785%
C94622112.229973%
D94622152.272247%

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 10894 9464 0 0 0.00% 0.00%
B 10894 9463 92 92 0.84% 0.97%
C 10893 9464 12 12 0.11% 0.13%
D 10893 9464 153 153 1.40% 1.62%

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 18127 71.09 1189 1169 238.5
A 13 6 16460 64.1 1189 1169 238.5
A 3 137 12010 45.45 1189 1169 238.5
B 6 159 2573860 11552.48 1164 1132 222.7
B 5 172 382190 1711.09 1164 1132 222.7
B 10 245 121184 539.08 1164 1132 222.7
C 0 10 242277 907.39 1133 1140 265.7
C 14 238 196645 735.68 1133 1140 265.7
C 3 233 80678 299.3 1133 1140 265.7
D 8 195 1851302 6816.43 1139 1109 271.4
D 12 233 647995 2383.24 1139 1109 271.4
D 2 250 82695 300.58 1139 1109 271.4

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