ASTROSAT CZTI

Data Quality Report

Orbit 44396

Creation date: 2024-06-27T23:03:04.837223
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/AS1A13_008T08_9000005998_44396cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44396cztM0_level2_quad_clean.evt
Size (bytes)461,442,240113,800,320
Size440.1 MB 108.5 MB
Events in quadrant A5,168,378748,115
Events in quadrant B3,664,019776,475
Events in quadrant C3,326,634746,454
Events in quadrant D4,364,289674,111

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216732
B0155292
C0150492
D0179202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71762132.968227%
B71761832.550167%
C71771111.546607%
D71772543.539083%

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 8600 7175 12 12 0.14% 0.17%
B 8600 7175 19 19 0.22% 0.26%
C 8601 7176 4 4 0.05% 0.06%
D 8601 7176 162 162 1.88% 2.26%

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 10 83 1849400 10653.66 825 808 173.5
A 13 248 50942 288.93 825 808 173.5
A 7 16 48975 277.59 825 808 173.5
B 0 168 75430 452.79 828 804 164.8
B 4 173 74566 447.54 828 804 164.8
B 5 255 65194 390.68 828 804 164.8
C 14 254 65638 332.87 818 823 194.7
C 1 3 58582 296.63 818 823 194.7
C 3 233 11464 54.65 818 823 194.7
D 2 249 286568 1393.95 809 784 205.0
D 13 249 193701 940.98 809 784 205.0
D 13 138 134630 652.85 809 784 205.0

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