ASTROSAT CZTI

Data Quality Report

Orbit 29701

Creation date: 2024-06-27T20:06:58.384320
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_007T01_9000004276_29701cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29701cztM0_level2_quad_clean.evt
Size (bytes)563,783,04074,021,760
Size537.7 MB 70.6 MB
Events in quadrant A3,040,515470,569
Events in quadrant B5,074,473468,517
Events in quadrant C3,889,949458,815
Events in quadrant D4,679,585440,596

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127071
B0189201
C0153501
D0182921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5760601.041667%
B57611883.263322%
C57612694.669328%
D57612303.992362%

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 7000 5760 0 0 0.00% 0.00%
B 7001 5761 41 41 0.59% 0.71%
C 7001 5761 80 80 1.14% 1.39%
D 7001 5761 180 180 2.57% 3.12%

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 14 31 13077 78.96 783 771 155.8
A 13 254 11432 68.41 783 771 155.8
A 3 137 7078 40.47 783 771 155.8
B 6 159 1770158 12212.16 773 756 144.9
B 5 255 202735 1394.03 773 756 144.9
B 10 245 44700 303.3 773 756 144.9
C 3 233 800127 4608.74 748 758 173.4
C 14 238 121824 698.0 748 758 173.4
C 10 22 21004 116.73 748 758 173.4
D 7 80 1129053 6415.11 747 731 175.9
D 8 195 616220 3499.38 747 731 175.9
D 2 250 39287 219.21 747 731 175.9

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