ASTROSAT CZTI

Data Quality Report

Orbit 34043

Creation date: 2024-06-27T20:55:47.259298
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/AS1A06_003T04_9000004866_34043cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34043cztM0_level2_quad_clean.evt
Size (bytes)556,511,04053,959,680
Size530.7 MB 51.5 MB
Events in quadrant A2,788,368325,951
Events in quadrant B6,246,596295,846
Events in quadrant C3,290,007320,690
Events in quadrant D4,149,102298,142

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118333
B0223892
C0130202
D0161552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5611330.588130%
B5611108219.283550%
C5611791.407949%
D56112554.544644%

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 9076 5613 23 23 0.25% 0.41%
B 9076 5613 853 853 9.40% 15.20%
C 9076 5613 63 63 0.69% 1.12%
D 9076 5613 231 231 2.55% 4.12%

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 15 169 131849 959.3 680 666 136.7
A 10 83 18736 132.14 680 666 136.7
A 13 254 9798 66.78 680 666 136.7
B 5 31 1859742 15055.32 651 636 123.5
B 5 15 845791 6844.19 651 636 123.5
B 5 172 563664 4559.48 651 636 123.5
C 15 214 258378 1669.07 660 666 154.4
C 0 10 241106 1557.21 660 666 154.4
C 3 233 174296 1124.51 660 666 154.4
D 8 195 519146 3250.67 649 631 159.5
D 2 249 438824 2747.12 649 631 159.5
D 13 249 220542 1378.66 649 631 159.5

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