ASTROSAT CZTI

Data Quality Report

Orbit 21584

Creation date: 2024-06-27T18:29:52.135039
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/AS1A06_002T02_9000003204_21584cztM0_level2.evt modeM0/AS1A06_002T02_9000003204_21584cztM0_level2_quad_clean.evt
Size (bytes)482,446,08091,477,440
Size460.1 MB 87.2 MB
Events in quadrant A3,111,691591,467
Events in quadrant B3,296,998598,970
Events in quadrant C3,095,233578,758
Events in quadrant D4,664,102546,136

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132860
B0137760
C0132940
D0182600

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6529230.352274%
B6529640.980242%
C6529400.612651%
D65293705.667024%

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 7459 6530 0 0 0.00% 0.00%
B 7459 6530 22 22 0.29% 0.34%
C 7459 6530 0 0 0.00% 0.00%
D 7459 6530 313 313 4.20% 4.79%

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 15 236 20570 123.41 802 787 160.3
A 13 254 8508 48.17 802 787 160.3
A 0 226 7051 39.08 802 787 160.3
B 3 64 106078 701.53 792 775 150.1
B 0 189 31563 205.11 792 775 150.1
B 0 190 29328 190.22 792 775 150.1
C 14 238 120176 672.28 762 768 177.6
C 13 61 5409 26.13 762 768 177.6
C 12 4 2717 10.97 762 768 177.6
D 1 52 968454 5276.64 759 736 183.4
D 7 223 285484 1552.63 759 736 183.4
D 2 136 192734 1046.9 759 736 183.4

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