ASTROSAT CZTI

Data Quality Report

Orbit 16607

Creation date: 2024-06-27T17:25:02.034388
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/AS1C04_009T01_9000002448_16607cztM0_level2.evt modeM0/AS1C04_009T01_9000002448_16607cztM0_level2_quad_clean.evt
Size (bytes)522,829,440128,327,040
Size498.6 MB 122.4 MB
Events in quadrant A4,010,603833,258
Events in quadrant B3,816,700870,970
Events in quadrant C4,075,442848,379
Events in quadrant D3,443,588833,848

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170292
B0162441
C0171241
D0156611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71833194.441041%
B7183600.835306%
C7183811.127663%
D7183360.501183%

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 7434 7185 234 234 3.15% 3.26%
B 7434 7185 2 2 0.03% 0.03%
C 7434 7185 0 0 0.00% 0.00%
D 7434 7185 19 19 0.26% 0.26%

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 15 174 932282 5776.16 792 774 161.3
A 15 69 18734 111.37 792 774 161.3
A 3 1 7558 42.07 792 774 161.3
B 0 189 161669 1037.35 814 792 155.1
B 0 85 157125 1008.05 814 792 155.1
B 15 35 133636 856.59 814 792 155.1
C 7 247 679098 3718.8 782 786 182.4
C 3 233 225993 1234.68 782 786 182.4
C 14 238 121151 659.89 782 786 182.4
D 1 52 297978 1573.45 784 758 188.9
D 10 70 112874 593.53 784 758 188.9
D 2 234 32208 166.49 784 758 188.9

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