ASTROSAT CZTI

Data Quality Report

Orbit 29211

Creation date: 2024-06-27T20:01:34.669145
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_102T02_9000004200_29211cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29211cztM0_level2_quad_clean.evt
Size (bytes)541,710,72082,224,000
Size516.6 MB 78.4 MB
Events in quadrant A3,151,558535,543
Events in quadrant B3,356,100538,999
Events in quadrant C3,869,274521,505
Events in quadrant D5,634,084486,545

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129231
B0136191
C0153941
D0208581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58271091.870602%
B58281342.299245%
C58281863.191489%
D582876413.109128%

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 7112 5828 0 0 0.00% 0.00%
B 7113 5829 1 1 0.01% 0.02%
C 7113 5829 1 1 0.01% 0.02%
D 7113 5829 520 520 7.31% 8.92%

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 0 13 99771 636.59 789 775 155.5
A 13 254 12094 72.79 789 775 155.5
A 3 137 6996 40.0 789 775 155.5
B 0 183 121330 839.99 778 759 143.5
B 10 245 67194 462.84 778 759 143.5
B 0 229 60754 417.97 778 759 143.5
C 3 233 759059 4394.34 760 766 172.6
C 14 238 127415 733.94 760 766 172.6
C 2 114 13968 76.51 760 766 172.6
D 1 52 2239636 13253.45 719 702 168.9
D 8 195 548658 3243.64 719 702 168.9
D 2 250 68036 398.59 719 702 168.9

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