ASTROSAT CZTI

Data Quality Report

Orbit 30590

Creation date: 2024-06-27T20:17:23.730161
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_058T03_9000004408_30590cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30590cztM0_level2_quad_clean.evt
Size (bytes)486,650,88066,772,800
Size464.1 MB 63.7 MB
Events in quadrant A2,634,020430,551
Events in quadrant B4,268,546427,953
Events in quadrant C2,751,157405,010
Events in quadrant D4,726,716388,236

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111251
B0164401
C0114892
D0177871

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5277561.061209%
B52771993.771082%
C52761773.354814%
D52762384.510993%

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 5402 5278 0 0 0.00% 0.00%
B 5402 5278 8 8 0.15% 0.15%
C 5401 5276 5 5 0.09% 0.09%
D 5401 5277 69 69 1.28% 1.31%

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 10347 70.69 680 667 136.9
A 13 254 9339 63.32 680 667 136.9
A 3 137 6976 46.07 680 667 136.9
B 6 159 1492739 11452.74 669 650 130.3
B 5 255 92965 708.58 669 650 130.3
B 0 190 17649 130.48 669 650 130.3
C 14 238 119807 778.95 644 646 153.0
C 0 10 39359 253.07 644 646 153.0
C 3 233 32453 207.92 644 646 153.0
D 8 195 1563889 10056.65 646 628 155.4
D 13 249 196462 1259.82 646 628 155.4
D 5 222 180711 1158.5 646 628 155.4

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