ASTROSAT CZTI

Data Quality Report

Orbit 07223

Creation date: 2024-06-27T15:17:29.084634
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/AS1G06_036T01_9000000988_07223cztM0_level2.evt modeM0/AS1G06_036T01_9000000988_07223cztM0_level2_quad_clean.evt
Size (bytes)360,967,68051,816,960
Size344.2 MB 49.4 MB
Events in quadrant A2,428,353302,258
Events in quadrant B2,577,036313,701
Events in quadrant C2,379,446312,629
Events in quadrant D3,209,672292,295

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103742
B0108621
C0102521
D0128841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4960350.705645%
B4960410.826613%
C4960310.625000%
D49601192.399194%

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 6255 4961 2 2 0.03% 0.04%
B 6255 4962 7 7 0.11% 0.14%
C 6255 4961 0 0 0.00% 0.00%
D 6255 4962 72 72 1.15% 1.45%

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 8 15 96638 779.67 599 588 123.2
A 15 174 12479 96.52 599 588 123.2
A 3 1 9465 72.06 599 588 123.2
B 10 16 84067 711.01 612 598 117.4
B 0 214 79001 667.85 612 598 117.4
B 4 81 15485 126.81 612 598 117.4
C 9 68 47700 334.57 596 599 140.8
C 13 61 4667 28.9 596 599 140.8
C 12 4 3994 24.12 596 599 140.8
D 2 216 627635 4375.08 584 567 143.3
D 12 233 120625 837.65 584 567 143.3
D 2 63 77996 540.23 584 567 143.3

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