ASTROSAT CZTI

Data Quality Report

Orbit 14441

Creation date: 2024-06-27T16:55:12.958137
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_025T01_9000002130_14441cztM0_level2.evt modeM0/AS1G08_025T01_9000002130_14441cztM0_level2_quad_clean.evt
Size (bytes)500,518,08078,474,240
Size477.3 MB 74.8 MB
Events in quadrant A3,251,986494,503
Events in quadrant B3,416,320488,537
Events in quadrant C3,914,656481,252
Events in quadrant D4,145,815470,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138733
B0145992
C0158902
D0166082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6334620.978844%
B6334691.089359%
C6334691.089359%
D63341312.068203%

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 7465 6335 9 9 0.12% 0.14%
B 7465 6335 5 5 0.07% 0.08%
C 7465 6335 0 0 0.00% 0.00%
D 7465 6335 116 116 1.55% 1.83%

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 15 133075 810.98 799 783 163.1
A 12 189 22063 130.45 799 783 163.1
A 4 2 11372 64.91 799 783 163.1
B 0 219 107776 714.95 793 773 149.7
B 0 189 51491 338.88 793 773 149.7
B 3 209 37154 243.08 793 773 149.7
C 3 233 867555 4821.61 774 779 179.8
C 14 234 17108 90.83 774 779 179.8
C 0 207 8091 40.67 774 779 179.8
D 12 110 398022 1938.29 773 758 205.0
D 2 120 333125 1621.65 773 758 205.0
D 13 122 322045 1567.59 773 758 205.0

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