ASTROSAT CZTI

Data Quality Report

Orbit 14632

Creation date: 2024-06-27T16:57:43.988873
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/AS1G08_026T01_9000002154_14632cztM0_level2.evt modeM0/AS1G08_026T01_9000002154_14632cztM0_level2_quad_clean.evt
Size (bytes)247,083,84029,721,600
Size235.6 MB 28.3 MB
Events in quadrant A1,511,834182,535
Events in quadrant B1,468,038182,554
Events in quadrant C2,623,110173,725
Events in quadrant D1,702,324174,450

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062641
B059791
C096571
D069851

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A259780.308048%
B2597200.770119%
C2597441.694263%
D2597261.001155%

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 2598 2598 0 0 0.00% 0.00%
B 2598 2598 0 0 0.00% 0.00%
C 2598 2598 1 1 0.04% 0.04%
D 2598 2598 21 21 0.81% 0.81%

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 1 162 46900 633.82 362 354 73.4
A 1 178 20611 275.84 362 354 73.4
A 1 161 18067 241.2 362 354 73.4
B 0 189 35769 519.13 359 352 68.2
B 4 173 8526 119.81 359 352 68.2
B 0 190 7856 109.99 359 352 68.2
C 3 233 1245597 15394.28 351 354 80.9
C 3 234 4926 56.52 351 354 80.9
C 14 234 2595 27.7 351 354 80.9
D 13 122 295693 3515.19 354 346 84.0
D 10 70 23603 276.8 354 346 84.0
D 13 172 20849 244.02 354 346 84.0

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