ASTROSAT CZTI

Data Quality Report

Orbit 14150

Creation date: 2024-06-27T16:51:04.767095
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_068T01_9000002090_14150cztM0_level2.evt modeM0/AS1G08_068T01_9000002090_14150cztM0_level2_quad_clean.evt
Size (bytes)157,884,48037,702,080
Size150.6 MB 36.0 MB
Events in quadrant A1,005,030255,000
Events in quadrant B1,031,458272,090
Events in quadrant C1,097,833244,304
Events in quadrant D1,505,249221,264

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052
B063
C074
D053

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073443091
B074283122
C077703443
D097724049

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07135
B07224
C07131
D07127

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A207710.048146%
B208750.239578%
C203040.197044%
D1966291.475076%

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 3946 2430 0 0 0.00% 0.00%
B 3957 2427 0 0 0.00% 0.00%
C 3961 2376 1 1 0.03% 0.04%
D 3877 2331 15 15 0.39% 0.64%

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 12 189 25357 478.21 251 246 52.5
A 8 15 9806 182.06 251 246 52.5
A 0 226 2142 36.11 251 246 52.5
B 0 189 10948 210.66 256 251 50.8
B 3 209 5826 109.79 256 251 50.8
B 12 111 5728 107.86 256 251 50.8
C 3 233 156069 2700.09 240 240 57.7
C 14 234 5957 99.06 240 240 57.7
C 13 61 1682 24.99 240 240 57.7
D 10 157 575708 10445.01 227 222 55.1
D 15 0 21513 386.43 227 222 55.1
D 1 52 18630 334.1 227 222 55.1

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