ASTROSAT CZTI

Data Quality Report

Orbit 06019

Creation date: 2024-06-27T15:01:49.146802
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_086T01_9000000774_06019cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06019cztM0_level2_quad_clean.evt
Size (bytes)704,445,120127,975,680
Size671.8 MB 122.0 MB
Events in quadrant A6,917,762844,409
Events in quadrant B7,390,404821,625
Events in quadrant C3,307,683859,234
Events in quadrant D3,205,446822,960

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260361
B0269671
C0154101
D0154941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A757979010.423539%
B7579138818.313762%
C7579370.488191%
D7579670.884022%

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 8029 7579 594 594 7.40% 7.84%
B 8029 7580 1102 1102 13.73% 14.54%
C 8029 7580 2 2 0.02% 0.03%
D 8029 7579 2 2 0.02% 0.03%

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 15 234 1909551 11464.04 820 802 166.5
A 13 34 1483727 8906.52 820 802 166.5
A 7 16 226558 1355.9 820 802 166.5
B 3 64 3720671 24318.33 799 779 153.0
B 7 221 162413 1056.66 799 779 153.0
B 0 214 113116 734.39 799 779 153.0
C 1 241 71684 374.41 817 819 189.3
C 1 16 17978 90.66 817 819 189.3
C 8 128 11062 54.12 817 819 189.3
D 2 14 40176 195.08 821 794 201.9
D 12 221 22903 109.52 821 794 201.9
D 7 55 18299 86.71 821 794 201.9

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