ASTROSAT CZTI

Data Quality Report

Orbit 14309

Creation date: 2024-06-27T16:53:19.747863
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/AS1G08_078T01_9000002110_14309cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14309cztM0_level2_quad_clean.evt
Size (bytes)683,893,440121,006,080
Size652.2 MB 115.4 MB
Events in quadrant A4,492,047763,675
Events in quadrant B4,821,131762,676
Events in quadrant C4,829,914759,503
Events in quadrant D5,940,270735,464

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193473
B0202592
C0198812
D0239372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9268450.485542%
B92681391.499784%
C9268630.679758%
D92683563.841174%

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 10864 9271 0 0 0.00% 0.00%
B 10864 9271 37 37 0.34% 0.40%
C 10864 9270 0 0 0.00% 0.00%
D 10864 9271 161 161 1.48% 1.74%

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 12 189 105923 462.59 1123 1099 226.6
A 8 15 39350 168.8 1123 1099 226.6
A 9 143 15096 61.77 1123 1099 226.6
B 0 229 280011 1283.09 1119 1090 217.4
B 10 245 47394 213.01 1119 1090 217.4
B 0 189 44399 199.23 1119 1090 217.4
C 3 233 584282 2285.09 1089 1095 255.2
C 13 61 7711 25.92 1089 1095 255.2
C 14 234 2913 7.12 1089 1095 255.2
D 5 222 1157805 4557.62 1066 1041 253.8
D 12 110 667875 2627.31 1066 1041 253.8
D 10 199 40350 154.88 1066 1041 253.8

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