ASTROSAT CZTI

Data Quality Report

Orbit 30717

Creation date: 2024-06-27T20:18:47.846667
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/AS1A10_071T44_9000004434_30717cztM0_level2.evt modeM0/AS1A10_071T44_9000004434_30717cztM0_level2_quad_clean.evt
Size (bytes)648,849,60090,319,680
Size618.8 MB 86.1 MB
Events in quadrant A4,155,263606,803
Events in quadrant B5,279,381604,576
Events in quadrant C4,134,675564,243
Events in quadrant D5,657,382521,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170442
B0195742
C0163862
D0214342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62761442.294455%
B62761792.852135%
C62762694.286170%
D62764967.903123%

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 7611 6276 7 7 0.09% 0.11%
B 7611 6276 0 0 0.00% 0.00%
C 7611 6276 79 79 1.04% 1.26%
D 7611 6276 443 443 5.82% 7.06%

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 8 192 369123 2034.38 919 909 181.0
A 0 13 242159 1332.91 919 909 181.0
A 13 254 11459 58.29 919 909 181.0
B 6 159 1705741 10112.07 900 882 168.6
B 12 111 20026 113.55 900 882 168.6
B 11 111 18177 102.58 900 882 168.6
C 10 22 444476 2261.93 849 856 196.1
C 3 233 160370 813.33 849 856 196.1
C 14 238 140927 714.19 849 856 196.1
D 8 195 1220714 6186.16 847 831 197.2
D 10 253 677276 3430.32 847 831 197.2
D 2 250 196367 991.58 847 831 197.2

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