ASTROSAT CZTI

Data Quality Report

Orbit 08089

Creation date: 2024-06-27T15:27:47.780416
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/AS1A02_055T01_9000001114_08089cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08089cztM0_level2_quad_clean.evt
Size (bytes)477,642,24068,172,480
Size455.5 MB 65.0 MB
Events in quadrant A3,267,142400,725
Events in quadrant B3,421,197404,715
Events in quadrant C3,257,871410,018
Events in quadrant D4,080,508397,880

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139963
B0143702
C0137792
D0165802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6457811.254453%
B6457901.393836%
C6457640.991172%
D64572734.227970%

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 7662 6457 4 4 0.05% 0.06%
B 7662 6457 7 7 0.09% 0.11%
C 7662 6457 0 0 0.00% 0.00%
D 7662 6457 147 147 1.92% 2.28%

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 15 223 45152 263.69 834 816 168.1
A 13 164 10901 59.98 834 816 168.1
A 0 226 8023 42.86 834 816 168.1
B 11 51 72702 457.11 835 816 157.3
B 0 231 47387 296.13 835 816 157.3
B 0 214 36410 226.33 835 816 157.3
C 1 16 62439 329.42 817 824 187.0
C 13 61 6277 29.15 817 824 187.0
C 1 3 3723 15.5 817 824 187.0
D 1 52 943520 4524.92 795 776 208.3
D 7 71 84950 404.01 795 776 208.3
D 2 234 20297 93.7 795 776 208.3

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