ASTROSAT CZTI

Data Quality Report

Orbit 43114

Creation date: 2024-06-27T22:48:12.737055
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_154T01_9000005850_43114cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43114cztM0_level2_quad_clean.evt
Size (bytes)302,906,88083,704,320
Size288.9 MB 79.8 MB
Events in quadrant A3,283,233564,395
Events in quadrant B2,255,650580,367
Events in quadrant C2,436,743546,368
Events in quadrant D2,848,216493,975

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129501
B0101801
C0103911
D0119201

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49821883.773585%
B4982110.220795%
C498390.180614%
D49831793.592214%

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 7045 4983 122 122 1.73% 2.45%
B 7045 4983 4 4 0.06% 0.08%
C 7046 4984 7 7 0.10% 0.14%
D 7046 4984 153 153 2.17% 3.07%

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 15 237 639031 5800.23 534 523 110.1
A 10 83 505534 4587.54 534 523 110.1
A 15 222 35027 313.44 534 523 110.1
B 0 229 101355 977.46 535 519 103.2
B 0 189 13806 128.8 535 519 103.2
B 0 230 13569 126.5 535 519 103.2
C 15 214 221415 1819.38 528 530 121.4
C 14 254 102726 841.76 528 530 121.4
C 3 233 29734 240.55 528 530 121.4
D 1 52 680493 5346.32 519 504 127.2
D 12 33 56318 438.83 519 504 127.2
D 12 233 29887 231.02 519 504 127.2

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