ASTROSAT CZTI

Data Quality Report

Orbit 51013

Creation date: 2025-03-04T10:07:20.360614
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/AS1C07_001T02_9000006452_51013cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51013cztM0_level2_quad_clean.evt
Size (bytes)505,468,800101,505,600
Size482.1 MB 96.8 MB
Events in quadrant A4,862,336646,373
Events in quadrant B3,900,174715,514
Events in quadrant C5,192,216612,727
Events in quadrant D4,199,280599,203

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0193562
B0169148
C0205312
D0176172

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71672944.102135%
B71671762.455700%
C71674786.669457%
D71671522.120832%

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 9052 7168 189 189 2.09% 2.64%
B 9052 7169 51 51 0.56% 0.71%
C 9052 7169 336 336 3.71% 4.69%
D 9052 7169 116 116 1.28% 1.62%

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 14 254 644811 3518.58 736 718 183.1
A 5 240 191384 1041.58 736 718 183.1
A 12 80 182601 993.6 736 718 183.1
B 4 81 289451 1817.99 742 717 158.8
B 4 171 249814 1568.42 742 717 158.8
B 12 32 86133 537.81 742 717 158.8
C 15 158 443604 2230.01 712 707 198.6
C 4 12 435636 2189.89 712 707 198.6
C 13 3 419667 2109.48 712 707 198.6
D 8 176 224021 1127.47 714 690 198.1
D 2 216 194400 977.93 714 690 198.1
D 2 249 159385 801.16 714 690 198.1

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