ASTROSAT CZTI

Data Quality Report

Orbit 30219

Creation date: 2024-06-27T20:13:16.862542
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_071T16_9000004348_30219cztM0_level2.evt modeM0/AS1A10_071T16_9000004348_30219cztM0_level2_quad_clean.evt
Size (bytes)540,319,68092,715,840
Size515.3 MB 88.4 MB
Events in quadrant A3,123,847601,719
Events in quadrant B4,881,910604,145
Events in quadrant C3,248,764581,536
Events in quadrant D4,670,050568,156

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135361
B0195252
C0138661
D0182981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482540.833076%
B6482831.280469%
C64821121.727862%
D64821592.452947%

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 7502 6482 1 1 0.01% 0.02%
B 7502 6482 0 0 0.00% 0.00%
C 7502 6482 0 0 0.00% 0.00%
D 7502 6482 99 99 1.32% 1.53%

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 13019 75.61 806 791 161.7
A 13 254 11561 66.6 806 791 161.7
A 3 137 8217 45.92 806 791 161.7
B 6 159 1745503 11359.79 794 772 153.6
B 12 111 18892 117.98 794 772 153.6
B 11 111 17707 110.26 794 772 153.6
C 14 238 124730 676.5 776 780 183.2
C 15 208 48675 261.4 776 780 183.2
C 3 233 39635 212.07 776 780 183.2
D 1 52 818557 4288.21 776 758 190.7
D 8 195 327145 1711.44 776 758 190.7
D 7 223 290806 1520.89 776 758 190.7

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