ASTROSAT CZTI

Data Quality Report

Orbit 54758

Creation date: 2025-11-11T18:16:32.964998
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/AS1A14_103T01_9000006524_54758cztM0_level2.fits modeM0/AS1A14_103T01_9000006524_54758cztM0_level2_quad_clean.evt
Size (bytes)503,392,32097,632,000
Size480.1 MB 93.1 MB
Events in quadrant A3,365,826655,039
Events in quadrant B4,773,414692,064
Events in quadrant C5,756,911543,037
Events in quadrant D4,193,545578,107

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150950
B0190710
C0223006
D0174980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7004210.299829%
B70052423.454675%
C7004100914.406054%
D70041572.241576%

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 7004 7004 12 12 0.17% 0.17%
B 7005 7005 179 179 2.56% 2.56%
C 7003 7003 970 970 13.85% 13.85%
D 7004 7004 142 142 2.03% 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 4 206 161123 866.0 746 726 185.2
A 3 14 142602 766.0 746 726 185.2
A 5 240 83743 448.22 746 726 185.2
B 2 249 780847 4925.52 733 706 158.4
B 0 213 399232 2516.14 733 706 158.4
B 5 185 204040 1283.77 733 706 158.4
C 4 5 2208409 11984.65 666 659 184.2
C 13 3 326781 1770.34 666 659 184.2
C 14 254 184297 996.87 666 659 184.2
D 11 129 742383 3661.16 714 683 202.6
D 3 12 151245 743.2 714 683 202.6
D 2 120 90036 441.06 714 683 202.6

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