ASTROSAT CZTI

Data Quality Report

Orbit 19929

Creation date: 2024-06-27T18:09:15.966653
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/AS1C04_009T05_9000002968_19929cztM0_level2.evt modeM0/AS1C04_009T05_9000002968_19929cztM0_level2_quad_clean.evt
Size (bytes)208,604,16052,585,920
Size198.9 MB 50.1 MB
Events in quadrant A1,257,665364,271
Events in quadrant B1,415,351365,927
Events in quadrant C2,130,995341,252
Events in quadrant D1,348,897348,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052721
B059071
C080711
D056571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2396401.669449%
B2396461.919866%
C23962108.764608%
D2395391.628392%

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 3591 2396 0 0 0.00% 0.00%
B 3591 2396 4 4 0.11% 0.17%
C 3591 2396 56 56 1.56% 2.34%
D 3590 2395 10 10 0.28% 0.42%

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 3008 40.33 327 320 66.6
A 12 194 2418 31.48 327 320 66.6
A 3 137 2308 29.83 327 320 66.6
B 0 189 69408 1127.01 322 314 61.3
B 0 190 25389 409.0 322 314 61.3
B 0 197 15707 251.07 322 314 61.3
C 3 233 452808 6407.76 303 306 70.6
C 4 254 266325 3767.03 303 306 70.6
C 9 221 172742 2441.82 303 306 70.6
D 7 38 61341 790.71 317 308 77.2
D 1 52 27363 350.51 317 308 77.2
D 12 233 10921 137.5 317 308 77.2

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