ASTROSAT CZTI

Data Quality Report

Orbit 05935

Creation date: 2024-06-27T15:01:00.507998
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_027T01_9000000770_05935cztM0_level2.evt modeM0/AS1G06_027T01_9000000770_05935cztM0_level2_quad_clean.evt
Size (bytes)233,472,96036,123,840
Size222.7 MB 34.5 MB
Events in quadrant A1,561,286219,594
Events in quadrant B1,684,678221,218
Events in quadrant C1,547,167219,772
Events in quadrant D2,061,406208,220

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066472
B069531
C066391
D081571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3154551.743817%
B3154862.726696%
C3154491.553583%
D31541023.233989%

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 4374 3155 0 0 0.00% 0.00%
B 4374 3155 4 4 0.09% 0.13%
C 4374 3155 0 0 0.00% 0.00%
D 4374 3155 32 32 0.73% 1.01%

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 0 226 3849 40.93 403 393 84.4
A 12 194 3779 40.1 403 393 84.4
A 7 16 3528 37.13 403 393 84.4
B 15 204 36566 448.34 408 398 80.7
B 15 85 29090 355.66 408 398 80.7
B 0 229 12809 153.85 408 398 80.7
C 9 68 8771 90.01 393 396 93.0
C 13 61 3172 29.83 393 396 93.0
C 12 4 1530 12.18 393 396 93.0
D 2 63 339180 3474.36 389 377 97.5
D 8 195 178774 1829.42 389 377 97.5
D 1 20 30703 310.99 389 377 97.5

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