ASTROSAT CZTI

Data Quality Report

Orbit 14332

Creation date: 2024-06-27T16:53:38.442601
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_14332cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14332cztM0_level2_quad_clean.evt
Size (bytes)877,322,88071,216,640
Size836.7 MB 67.9 MB
Events in quadrant A3,609,601479,273
Events in quadrant B14,747,611262,453
Events in quadrant C3,648,332471,344
Events in quadrant D4,094,883458,359

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149463
B0485412
C0145272
D0166782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6937791.138821%
B6937536877.382154%
C6937510.735188%
D69371632.349719%

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 7713 6938 0 0 0.00% 0.00%
B 7712 6937 4650 4650 60.30% 67.03%
C 7713 6939 0 0 0.00% 0.00%
D 7713 6939 94 94 1.22% 1.35%

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 259220 1471.28 865 848 175.6
A 8 15 23320 127.96 865 848 175.6
A 0 226 7544 38.13 865 848 175.6
B 10 245 12503642 116983.28 554 540 106.9
B 0 189 27971 256.65 554 540 106.9
B 0 219 19558 177.94 554 540 106.9
C 3 233 409290 2118.75 830 834 192.8
C 13 61 5922 26.39 830 834 192.8
C 10 22 3874 15.77 830 834 192.8
D 5 222 200461 1011.18 830 812 197.4
D 13 122 188915 952.7 830 812 197.4
D 2 120 166352 838.42 830 812 197.4

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