ASTROSAT CZTI

Data Quality Report

Orbit 29415

Creation date: 2024-06-27T20:03:53.403629
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/AS1A10_102T11_9000004230_29415cztM0_level2.evt modeM0/AS1A10_102T11_9000004230_29415cztM0_level2_quad_clean.evt
Size (bytes)685,981,44093,360,960
Size654.2 MB 89.0 MB
Events in quadrant A3,256,107621,319
Events in quadrant B3,566,959628,145
Events in quadrant C7,449,950565,636
Events in quadrant D6,064,094559,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133942
B0143692
C0268002
D0224612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479841.296496%
B64791241.913876%
C647996114.832536%
D647985413.181046%

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 7534 6480 0 0 0.00% 0.00%
B 7534 6480 20 20 0.27% 0.31%
C 7534 6480 173 173 2.30% 2.67%
D 7534 6480 223 223 2.96% 3.44%

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 13 254 12414 69.68 840 824 166.3
A 5 203 8845 48.22 840 824 166.3
A 3 137 7823 42.08 840 824 166.3
B 0 229 243148 1564.81 821 802 154.9
B 10 245 40617 257.08 821 802 154.9
B 0 190 21670 134.74 821 802 154.9
C 3 233 4202995 24103.94 757 761 174.3
C 14 238 187706 1072.31 757 761 174.3
C 14 254 90766 516.27 757 761 174.3
D 1 52 1694926 9255.52 778 758 183.0
D 8 195 714641 3900.06 778 758 183.0
D 7 80 320573 1747.2 778 758 183.0

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