ASTROSAT CZTI

Data Quality Report

Orbit 07642

Creation date: 2024-06-27T15:22:06.731885
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/AS1G06_016T01_9000001052_07642cztM0_level2.evt modeM0/AS1G06_016T01_9000001052_07642cztM0_level2_quad_clean.evt
Size (bytes)381,237,12061,836,480
Size363.6 MB 59.0 MB
Events in quadrant A2,548,289384,534
Events in quadrant B2,646,825387,715
Events in quadrant C3,131,254381,187
Events in quadrant D2,880,763369,805

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105921
B0108101
C0124141
D0116871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49741312.633695%
B49741372.754322%
C49741362.734218%
D49751442.894472%

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 4973 4973 0 0 0.00% 0.00%
B 4973 4973 2 2 0.04% 0.04%
C 4973 4973 1 1 0.02% 0.02%
D 4974 4974 21 21 0.42% 0.42%

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 15 63 7043 48.28 658 645 132.5
A 0 226 6368 43.18 658 645 132.5
A 12 194 5699 38.14 658 645 132.5
B 0 219 41656 329.59 654 641 124.4
B 0 214 21085 164.29 654 641 124.4
B 12 111 12520 95.46 654 641 124.4
C 1 16 572307 3902.22 636 641 146.5
C 9 68 74623 505.0 636 641 146.5
C 13 61 4956 29.45 636 641 146.5
D 2 152 230518 1459.97 641 619 157.5
D 14 34 87858 554.01 641 619 157.5
D 2 14 64544 405.95 641 619 157.5

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