ASTROSAT CZTI

Data Quality Report

Orbit 39103

Creation date: 2024-06-27T22:00:27.616718
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/AS1T05_067T01_9000005432_39103cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39103cztM0_level2_quad_clean.evt
Size (bytes)354,968,64094,777,920
Size338.5 MB 90.4 MB
Events in quadrant A3,555,520635,361
Events in quadrant B2,647,311656,570
Events in quadrant C3,191,816612,863
Events in quadrant D3,304,161569,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142352
B0116721
C0131621
D0137831

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5667651.146991%
B5667150.264690%
C5667701.235221%
D5667721.270513%

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 7160 5668 60 60 0.84% 1.06%
B 7160 5668 0 0 0.00% 0.00%
C 7160 5668 49 49 0.68% 0.86%
D 7160 5668 61 61 0.85% 1.08%

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 427109 3322.57 629 618 128.4
A 12 16 401149 3120.33 629 618 128.4
A 15 223 174138 1351.81 629 618 128.4
B 5 184 83322 669.98 628 612 123.5
B 0 230 52416 419.63 628 612 123.5
B 5 172 20116 157.99 628 612 123.5
C 15 208 325446 2268.72 610 613 143.2
C 15 214 239841 1670.83 610 613 143.2
C 9 187 236309 1646.17 610 613 143.2
D 12 235 307732 2071.97 607 589 148.2
D 2 249 187221 1259.01 607 589 148.2
D 12 233 130547 876.69 607 589 148.2

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