ASTROSAT CZTI

Data Quality Report

Orbit 40330

Creation date: 2024-06-27T22:15:00.184825
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/AS1A12_056T02_9000005538_40330cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40330cztM0_level2_quad_clean.evt
Size (bytes)373,746,24098,778,240
Size356.4 MB 94.2 MB
Events in quadrant A3,338,243678,827
Events in quadrant B3,283,707693,047
Events in quadrant C2,732,026659,989
Events in quadrant D4,079,031597,693

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131343
B0130292
C0110132
D0155372

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51671412.728856%
B51671362.632088%
C5167200.387072%
D51671883.638475%

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 7259 5168 116 116 1.60% 2.24%
B 7259 5168 105 105 1.45% 2.03%
C 7259 5168 15 15 0.21% 0.29%
D 7259 5168 195 195 2.69% 3.77%

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 10 83 470106 3713.34 625 615 126.4
A 13 248 331379 2616.11 625 615 126.4
A 12 189 50627 395.56 625 615 126.4
B 3 112 411368 3492.52 624 609 117.6
B 4 171 183262 1553.03 624 609 117.6
B 5 255 114594 969.17 624 609 117.6
C 15 214 237767 1684.23 608 612 140.8
C 14 254 85554 603.24 608 612 140.8
C 0 10 36590 255.51 608 612 140.8
D 12 227 1561947 10652.36 601 585 146.6
D 12 128 63155 426.88 601 585 146.6
D 9 19 56439 381.06 601 585 146.6

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