ASTROSAT CZTI

Data Quality Report

Orbit 41445

Creation date: 2024-06-27T22:29:09.479580
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/AS1T05_100T01_9000005668_41445cztM0_level2.fits modeM0/AS1T05_100T01_9000005668_41445cztM0_level2_quad_clean.evt
Size (bytes)302,489,28088,076,160
Size288.5 MB 84.0 MB
Events in quadrant A2,724,126601,834
Events in quadrant B2,303,115624,495
Events in quadrant C3,045,074556,369
Events in quadrant D2,732,341531,698

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110843
B0101632
C0120482
D0116312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5032120.238474%
B503290.178855%
C50322715.385533%
D50321182.344992%

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 7095 5033 5 5 0.07% 0.10%
B 7095 5033 1 1 0.01% 0.02%
C 7095 5033 256 256 3.61% 5.09%
D 7095 5033 102 102 1.44% 2.03%

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 10 83 477300 4041.93 573 563 117.9
A 13 248 15260 124.61 573 563 117.9
A 2 79 11395 91.84 573 563 117.9
B 0 190 24425 218.31 575 561 109.3
B 12 111 13658 119.81 575 561 109.3
B 11 111 12841 112.34 575 561 109.3
C 0 10 730957 5805.65 540 545 125.8
C 15 214 204554 1621.56 540 545 125.8
C 13 61 3657 24.74 540 545 125.8
D 13 249 334918 2477.89 552 536 134.9
D 13 171 124082 915.52 552 536 134.9
D 1 47 107961 796.06 552 536 134.9

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