ASTROSAT CZTI

Data Quality Report

Orbit 17369

Creation date: 2024-06-27T17:35:41.618684
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/AS1T03_032T01_9000002564_17369cztM0_level2.evt modeM0/AS1T03_032T01_9000002564_17369cztM0_level2_quad_clean.evt
Size (bytes)249,065,28024,863,040
Size237.5 MB 23.7 MB
Events in quadrant A1,620,847139,772
Events in quadrant B1,625,004140,316
Events in quadrant C1,653,800132,607
Events in quadrant D2,441,766129,394

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066811
B066821
C068791
D093541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2949130.440827%
B2949180.610376%
C2949290.983384%
D29491194.035266%

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 2949 2949 0 0 0.00% 0.00%
B 2949 2949 0 0 0.00% 0.00%
C 2949 2949 0 0 0.00% 0.00%
D 2949 2949 80 80 2.71% 2.71%

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 3733 39.24 421 414 84.6
A 12 194 3138 32.2 421 414 84.6
A 3 137 2817 28.41 421 414 84.6
B 12 111 8339 101.86 415 407 77.9
B 11 111 7546 91.67 415 407 77.9
B 14 111 6202 74.42 415 407 77.9
C 14 238 63598 693.58 395 399 91.1
C 3 233 46270 503.41 395 399 91.1
C 13 61 2833 26.71 395 399 91.1
D 13 232 474732 4947.58 395 385 95.9
D 1 52 221384 2305.09 395 385 95.9
D 5 222 111689 1160.93 395 385 95.9

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