ASTROSAT CZTI

Data Quality Report

Orbit 34330

Creation date: 2022-02-02T18:18:32.919782
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/AS1C07_001T05_9000004902_34330cztM0_level2.evt modeM0/AS1C07_001T05_9000004902_34330cztM0_level2_quad_clean.evt
Size (bytes)445,645,44089,138,880
Size425.0 MB 85.0 MB
Events in quadrant A2,447,064593,159
Events in quadrant B3,180,407594,482
Events in quadrant C2,964,672584,823
Events in quadrant D4,540,078551,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108752
B0128071
C0119691
D0171251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536080.149254%
B53601442.686567%
C5360831.548507%
D53601362.537313%

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 6973 5361 4 4 0.06% 0.07%
B 6973 5361 93 93 1.33% 1.73%
C 6973 5361 62 62 0.89% 1.16%
D 6973 5361 130 130 1.86% 2.42%

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 9 143 24417 190.02 620 608 125.3
A 10 83 18936 146.28 620 608 125.3
A 13 6 8463 62.69 620 608 125.3
B 5 172 468361 3967.19 609 592 117.9
B 5 255 84448 711.19 609 592 117.9
B 4 251 69308 582.79 609 592 117.9
C 14 254 319167 2306.93 598 601 138.1
C 15 214 223818 1616.45 598 601 138.1
C 0 10 48013 343.34 598 601 138.1
D 8 195 1088252 7430.79 599 581 146.4
D 12 235 558336 3810.49 599 581 146.4
D 10 118 147097 1000.97 599 581 146.4

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