ASTROSAT CZTI

Data Quality Report

Orbit 43552

Creation date: 2024-06-27T22:53:06.388708
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/AS1A05_174T01_9000005880_43552cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43552cztM0_level2_quad_clean.evt
Size (bytes)1,342,114,56088,669,440
Size1.2 GB 84.6 MB
Events in quadrant A11,219,833717,696
Events in quadrant B4,201,689819,077
Events in quadrant C16,245,442561,767
Events in quadrant D17,439,56060,214

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385510
B0175270
C0533300
D0568470

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7450266135.718121%
B74511562.093679%
C7451522970.178500%
D74517451100.000000%

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 7450 7450 1502 1502 20.16% 20.16%
B 7451 7451 53 53 0.71% 0.71%
C 7451 7451 4764 4764 63.94% 63.94%
D 7450 7450 6751 6751 90.62% 90.62%

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 0 228 4976051 31164.31 761 743 159.6
A 10 99 1360403 8516.63 761 743 159.6
A 15 222 629096 3935.87 761 743 159.6
B 3 42 225366 1346.96 844 820 166.7
B 0 230 224029 1338.94 844 820 166.7
B 3 25 214935 1284.38 844 820 166.7
C 15 142 7049934 49711.83 597 601 141.8
C 15 174 2941557 20739.6 597 601 141.8
C 15 158 1271130 8959.76 597 601 141.8
D 4 216 12487533 312261.15 93 87 40.0
D 4 212 869214 21733.4 93 87 40.0
D 13 187 868340 21711.54 93 87 40.0

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