ASTROSAT CZTI

Data Quality Report

Orbit 37003

Creation date: 2024-06-27T21:34:06.078825
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/AS1A11_079T01_9000005254_37003cztM0_level2.evt modeM0/AS1A11_079T01_9000005254_37003cztM0_level2_quad_clean.evt
Size (bytes)423,308,16064,221,120
Size403.7 MB 61.2 MB
Events in quadrant A2,711,679395,820
Events in quadrant B4,317,117386,350
Events in quadrant C2,792,391399,437
Events in quadrant D2,631,352384,417

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116103
B0165122
C0116552
D0117532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5406220.406955%
B54064087.547170%
C5406220.406955%
D5406420.776915%

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 6989 5407 14 14 0.20% 0.26%
B 6989 5407 290 290 4.15% 5.36%
C 6989 5407 20 20 0.29% 0.37%
D 6989 5407 39 39 0.56% 0.72%

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 10 83 219851 1758.28 610 599 124.7
A 9 143 65858 523.34 610 599 124.7
A 7 16 50934 403.66 610 599 124.7
B 5 184 1794770 15699.59 591 576 114.3
B 0 213 47100 407.1 591 576 114.3
B 5 172 44321 382.78 591 576 114.3
C 15 214 232441 1656.57 597 602 140.0
C 0 10 99612 707.46 597 602 140.0
C 14 254 47885 337.85 597 602 140.0
D 1 52 113885 780.27 592 575 145.2
D 2 153 101587 695.59 592 575 145.2
D 2 250 61245 417.78 592 575 145.2

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