ASTROSAT CZTI

Data Quality Report

Orbit 59354

Creation date: 2026-09-16T19:11:46.029095
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_033T01_9000006608_59354cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59354cztM0_level2_quad_clean.evt
Size (bytes)515,134,080108,725,760
Size491.3 MB 103.7 MB
Events in quadrant A3,856,764717,801
Events in quadrant B3,874,089770,631
Events in quadrant C4,474,159684,618
Events in quadrant D6,310,305622,584

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164583
B0162493
C0180693
D0236803

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71282072.904040%
B71282443.423120%
C71282122.974186%
D71294456.242110%

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 9223 7129 42 42 0.46% 0.59%
B 9223 7130 49 49 0.53% 0.69%
C 9223 7129 86 86 0.93% 1.21%
D 9224 7130 278 278 3.01% 3.90%

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 15 233 550315 2719.07 827 805 202.1
A 10 251 71161 348.13 827 805 202.1
A 3 137 10071 45.85 827 805 202.1
B 4 236 257005 1469.8 810 778 174.3
B 5 236 108446 617.62 810 778 174.3
B 4 171 104360 594.18 810 778 174.3
C 3 233 858565 3917.23 801 793 219.0
C 12 252 178865 813.21 801 793 219.0
C 4 5 99127 449.07 801 793 219.0
D 12 110 2515393 11286.11 792 756 222.8
D 3 12 232497 1040.09 792 756 222.8
D 12 2 111376 496.48 792 756 222.8

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

TCT plots

Parameter TCT0 TCT_healed
Tct