ASTROSAT CZTI

Data Quality Report

Orbit 43716

Creation date: 2024-06-27T22:54:56.126659
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/AS1A13_003T01_9000005902_43716cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43716cztM0_level2_quad_clean.evt
Size (bytes)142,957,44021,165,120
Size136.3 MB 20.2 MB
Events in quadrant A1,369,789146,971
Events in quadrant B685,816162,750
Events in quadrant C2,196,52289,868
Events in quadrant D934,549142,534

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0302

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05228220
B02948111
C07847430
D03822149

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0111
D0111

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1316977.370821%
B1325342.566038%
C130463048.312883%
D1326614.600302%

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 2382 1336 34 34 1.43% 2.54%
B 2382 1340 0 0 0.00% 0.00%
C 2381 1328 457 457 19.19% 34.41%
D 2381 1344 32 32 1.34% 2.38%

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 15 222 408922 11848.69 158 155 34.5
A 10 83 229499 6647.86 158 155 34.5
A 15 223 87636 2535.76 158 155 34.5
B 0 199 23141 662.19 166 161 34.7
B 5 235 5417 151.46 166 161 34.7
B 12 111 4166 115.41 166 161 34.7
C 15 157 1687245 56465.69 118 118 29.9
C 15 173 18527 616.12 118 118 29.9
C 15 158 9831 325.08 118 118 29.9
D 1 47 98163 2371.79 156 151 41.3
D 13 249 72920 1760.93 156 151 41.3
D 7 80 35421 853.5 156 151 41.3

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