ASTROSAT CZTI

Data Quality Report

Orbit 13101

Creation date: 2024-06-27T16:36:20.042351
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/AS1C03_023T01_9000001930_13101cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13101cztM0_level2_quad_clean.evt
Size (bytes)460,154,88090,806,400
Size438.8 MB 86.6 MB
Events in quadrant A3,380,450571,940
Events in quadrant B3,485,335583,405
Events in quadrant C3,136,392581,996
Events in quadrant D3,482,955550,179

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140583
B0144782
C0136072
D0146912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6628761.146651%
B66281241.870851%
C6628430.648763%
D6628931.403138%

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 7624 6630 3 3 0.04% 0.05%
B 7624 6630 32 32 0.42% 0.48%
C 7624 6630 0 0 0.00% 0.00%
D 7624 6630 11 11 0.14% 0.17%

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 98935 595.25 814 797 164.9
A 15 223 63379 379.59 814 797 164.9
A 1 162 23067 135.08 814 797 164.9
B 4 239 86305 542.51 812 792 157.6
B 0 85 74182 465.6 812 792 157.6
B 3 64 73920 463.94 812 792 157.6
C 14 234 15003 76.36 800 804 186.0
C 13 61 5731 26.5 800 804 186.0
C 8 222 2206 7.54 800 804 186.0
D 1 52 219448 1139.2 796 776 192.0
D 10 157 151094 783.1 796 776 192.0
D 13 122 32414 164.82 796 776 192.0

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