ASTROSAT CZTI

Data Quality Report

Orbit 15203

Creation date: 2024-06-27T17:05:14.650012
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/AS1T02_069T01_9000002242_15203cztM0_level2.evt modeM0/AS1T02_069T01_9000002242_15203cztM0_level2_quad_clean.evt
Size (bytes)710,809,92088,580,160
Size677.9 MB 84.5 MB
Events in quadrant A4,363,860539,091
Events in quadrant B6,211,694498,660
Events in quadrant C6,247,988534,349
Events in quadrant D4,125,230517,718

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184384
B0238523
C0239923
D0182733

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85244345.091506%
B8524113113.268419%
C8524132615.556077%
D85242963.472548%

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 8765 8519 12 12 0.14% 0.14%
B 8765 8515 496 496 5.66% 5.83%
C 8764 8517 495 495 5.65% 5.81%
D 8765 8519 5 5 0.06% 0.06%

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 166038 757.39 1066 1038 217.9
A 15 239 84148 381.5 1066 1038 217.9
A 9 143 14373 61.21 1066 1038 217.9
B 3 112 1879227 9239.69 1029 1002 203.3
B 0 229 165948 811.43 1029 1002 203.3
B 3 64 69524 337.09 1029 1002 203.3
C 3 233 2424055 10578.56 977 981 229.1
C 13 61 7109 26.75 977 981 229.1
C 14 234 5330 18.99 977 981 229.1
D 2 33 75634 289.59 1040 1006 257.7
D 13 172 40275 152.38 1040 1006 257.7
D 9 68 36359 137.19 1040 1006 257.7

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