ASTROSAT CZTI

Data Quality Report

Orbit 06819

Creation date: 2024-06-27T15:12:01.735841
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_086T02_9000000936_06819cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06819cztM0_level2_quad_clean.evt
Size (bytes)255,960,00052,856,640
Size244.1 MB 50.4 MB
Events in quadrant A1,745,742339,520
Events in quadrant B1,773,315344,355
Events in quadrant C1,735,713334,933
Events in quadrant D2,239,713315,864

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078081
B078621
C078151
D093951

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3761320.850838%
B3761481.276256%
C3761170.452007%
D37611493.961712%

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 5011 3762 0 0 0.00% 0.00%
B 5011 3762 0 0 0.00% 0.00%
C 5011 3762 0 0 0.00% 0.00%
D 5011 3762 119 119 2.37% 3.16%

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 55540 612.64 435 425 90.0
A 13 248 8287 87.39 435 425 90.0
A 15 234 4274 42.78 435 425 90.0
B 0 228 44211 517.87 441 432 84.5
B 12 111 8371 93.91 441 432 84.5
B 11 111 6538 72.23 441 432 84.5
C 9 247 42279 421.96 422 425 99.2
C 12 16 40523 404.26 422 425 99.2
C 13 61 3383 29.82 422 425 99.2
D 14 34 463758 4531.08 413 400 102.3
D 2 216 108113 1053.3 413 400 102.3
D 8 195 57599 559.34 413 400 102.3

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