ASTROSAT CZTI

Data Quality Report

Orbit 09323

Creation date: 2024-06-27T15:44:30.329028
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/AS1G07_009T01_9000001318_09323cztM0_level2.evt modeM0/AS1G07_009T01_9000001318_09323cztM0_level2_quad_clean.evt
Size (bytes)373,708,80075,294,720
Size356.4 MB 71.8 MB
Events in quadrant A2,913,974574,209
Events in quadrant B2,631,952465,139
Events in quadrant C2,474,030448,880
Events in quadrant D2,931,661416,129

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243
B0241
C0244
D0243

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147432610
B0138702411
C0135452414
D0162863895

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013226
B013222
C013212
D013236

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5392450.834570%
B5411571.053410%
C5362330.615442%
D52881162.193646%

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 8874 6101 0 0 0.00% 0.00%
B 8874 6145 1 1 0.01% 0.02%
C 8875 6138 0 0 0.00% 0.00%
D 8874 6015 51 51 0.57% 0.85%

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 8 5 408547 3074.44 646 631 132.7
A 1 162 13516 97.11 646 631 132.7
A 0 226 5900 39.71 646 631 132.7
B 10 245 59861 467.29 657 640 126.7
B 0 219 19905 152.01 657 640 126.7
B 12 111 14235 107.27 657 640 126.7
C 13 61 4804 28.16 634 636 148.0
C 8 222 1744 7.49 634 636 148.0
C 3 202 1575 6.34 634 636 148.0
D 12 227 426555 2725.32 607 592 156.3
D 1 52 85516 543.35 607 592 156.3
D 10 172 46811 295.71 607 592 156.3

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