ASTROSAT CZTI

Data Quality Report

Orbit 14781

Creation date: 2024-06-27T16:59:36.607440
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/AS1A04_022T06_9000002182_14781cztM0_level2.evt modeM0/AS1A04_022T06_9000002182_14781cztM0_level2_quad_clean.evt
Size (bytes)192,913,92020,269,440
Size184.0 MB 19.3 MB
Events in quadrant A1,299,928111,349
Events in quadrant B1,592,946109,412
Events in quadrant C1,422,474107,664
Events in quadrant D1,356,444106,400

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053481
B064271
C057131
D055621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247980.322711%
B2479471.895926%
C247970.282372%
D2479110.443727%

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 2480 2480 0 0 0.00% 0.00%
B 2480 2480 22 22 0.89% 0.89%
C 2480 2480 0 0 0.00% 0.00%
D 2480 2480 7 7 0.28% 0.28%

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 15 31 65879 1009.36 314 308 65.0
A 12 189 15948 240.75 314 308 65.0
A 3 1 4793 69.04 314 308 65.0
B 3 64 176709 2955.72 309 302 59.7
B 0 219 134541 2249.19 309 302 59.7
B 0 190 18118 298.51 309 302 59.7
C 3 233 243028 3414.96 302 303 71.1
C 13 61 2304 28.15 302 303 71.1
C 0 207 1325 14.38 302 303 71.1
D 12 233 157412 1949.86 306 297 80.6
D 15 145 14178 172.27 306 297 80.6
D 2 234 10558 127.34 306 297 80.6

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