ASTROSAT CZTI

Data Quality Report

Orbit 22590

Creation date: 2024-06-27T18:43:16.203582
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/AS1C05_001T01_9000003354_22590cztM0_level2.evt modeM0/AS1C05_001T01_9000003354_22590cztM0_level2_quad_clean.evt
Size (bytes)477,005,760134,084,160
Size454.9 MB 127.9 MB
Events in quadrant A3,241,026912,317
Events in quadrant B3,549,065924,446
Events in quadrant C3,514,401882,980
Events in quadrant D3,682,943870,842

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140541
B0148171
C0146701
D0155771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6750610.903704%
B6750951.407407%
C67501191.762963%
D67501061.570370%

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 7760 6751 0 0 0.00% 0.00%
B 7760 6751 13 13 0.17% 0.19%
C 7760 6751 0 0 0.00% 0.00%
D 7760 6751 25 25 0.32% 0.37%

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 11 47 10872 59.64 838 821 168.5
A 13 254 10620 58.14 838 821 168.5
A 0 226 7405 39.07 838 821 168.5
B 15 33 222003 1416.43 827 806 156.2
B 0 190 42022 263.93 827 806 156.2
B 12 111 18189 111.31 827 806 156.2
C 10 222 231217 1254.49 799 805 183.7
C 14 238 127906 692.01 799 805 183.7
C 10 22 38586 205.7 799 805 183.7
D 1 52 421331 2143.85 816 792 196.2
D 12 227 89981 454.67 816 792 196.2
D 13 249 52367 262.92 816 792 196.2

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