ASTROSAT CZTI

Data Quality Report

Orbit 23969

Creation date: 2024-06-27T19:00:37.424271
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/AS1A07_001T03_9000003548_23969cztM0_level2.evt modeM0/AS1A07_001T03_9000003548_23969cztM0_level2_quad_clean.evt
Size (bytes)327,772,80060,422,400
Size312.6 MB 57.6 MB
Events in quadrant A1,428,413442,299
Events in quadrant B1,443,295440,918
Events in quadrant C2,170,528413,560
Events in quadrant D4,678,767317,826

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060910
B061080
C083610
D0160070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A300550.166389%
B300520.066556%
C30051234.093178%
D3005123541.098170%

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 3005 3005 0 0 0.00% 0.00%
B 3005 3005 0 0 0.00% 0.00%
C 3005 3005 129 129 4.29% 4.29%
D 3005 3005 885 885 29.45% 29.45%

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 13 254 4905 60.93 370 364 74.5
A 0 226 3374 40.39 370 364 74.5
A 3 137 2900 34.03 370 364 74.5
B 0 197 12728 182.56 363 356 67.8
B 12 111 7249 101.71 363 356 67.8
B 11 111 6352 88.48 363 356 67.8
C 0 239 753308 9631.49 338 342 78.2
C 14 238 55078 700.15 338 342 78.2
C 0 10 37930 480.8 338 342 78.2
D 12 218 2787591 40359.6 278 271 69.1
D 2 82 307702 4451.51 278 271 69.1
D 8 195 212967 3079.78 278 271 69.1

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