ASTROSAT CZTI

Data Quality Report

Orbit 28924

Creation date: 2024-06-27T19:58:00.808585
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/AS1A10_048T07_9000004148_28924cztM0_level2.evt modeM0/AS1A10_048T07_9000004148_28924cztM0_level2_quad_clean.evt
Size (bytes)542,724,48083,594,880
Size517.6 MB 79.7 MB
Events in quadrant A3,275,104530,304
Events in quadrant B3,088,568548,150
Events in quadrant C4,522,592510,166
Events in quadrant D5,120,998500,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137061
B0130511
C0177511
D0197001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6333861.357966%
B6332951.500316%
C63322263.569172%
D63321302.053064%

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 6953 6334 0 0 0.00% 0.00%
B 6952 6333 1 1 0.01% 0.02%
C 6952 6333 4 4 0.06% 0.06%
D 6952 6333 34 34 0.49% 0.54%

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 4 2 248950 1544.97 783 765 160.6
A 13 254 11128 64.51 783 765 160.6
A 3 137 7716 43.27 783 765 160.6
B 10 245 22814 146.62 774 753 150.5
B 12 111 18628 118.8 774 753 150.5
B 0 190 17129 108.84 774 753 150.5
C 3 233 1486035 8467.07 743 748 175.4
C 14 238 119986 679.73 743 748 175.4
C 2 114 14451 78.12 743 748 175.4
D 8 195 1935455 10563.51 755 733 183.2
D 1 52 295324 1608.46 755 733 183.2
D 2 250 27672 147.09 755 733 183.2

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