ASTROSAT CZTI

Data Quality Report

Orbit 42693

Creation date: 2024-06-27T22:43:07.804386
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/AS1A05_013T01_9000005822_42693cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42693cztM0_level2_quad_clean.evt
Size (bytes)325,609,92090,437,760
Size310.5 MB 86.2 MB
Events in quadrant A3,508,079604,981
Events in quadrant B2,613,119634,158
Events in quadrant C2,575,444598,639
Events in quadrant D2,960,463544,895

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134412
B0110022
C0105132
D0121242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50841432.812746%
B5084320.629426%
C508350.098367%
D5083951.868975%

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 7206 5085 115 115 1.60% 2.26%
B 7206 5085 22 22 0.31% 0.43%
C 7205 5084 1 1 0.01% 0.02%
D 7205 5084 83 83 1.15% 1.63%

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 13 248 670551 5646.76 586 576 118.6
A 10 83 548499 4618.07 586 576 118.6
A 15 237 9217 72.83 586 576 118.6
B 6 235 87529 776.28 586 571 112.0
B 5 172 72152 639.01 586 571 112.0
B 0 229 68979 610.68 586 571 112.0
C 15 214 216263 1609.33 577 580 134.0
C 2 16 43857 322.91 577 580 134.0
C 4 254 15496 111.3 577 580 134.0
D 2 249 236624 1681.01 573 556 140.4
D 13 249 184185 1307.6 573 556 140.4
D 1 47 151187 1072.62 573 556 140.4

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