ASTROSAT CZTI

Data Quality Report

Orbit 43201

Creation date: 2024-06-27T22:49:14.601605
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/AS1A09_036T17_9000005858_43201cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43201cztM0_level2_quad_clean.evt
Size (bytes)335,194,56086,855,040
Size319.7 MB 82.8 MB
Events in quadrant A3,944,507555,505
Events in quadrant B2,645,414601,257
Events in quadrant C2,524,153576,500
Events in quadrant D2,884,911528,826

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150342
B0113493
C0107052
D0121372

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52483336.345274%
B5247150.285878%
C524780.152468%
D5247500.952925%

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 7279 5249 256 256 3.52% 4.88%
B 7278 5248 4 4 0.05% 0.08%
C 7278 5248 4 4 0.05% 0.08%
D 7278 5248 59 59 0.81% 1.12%

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 15 237 854286 7301.28 572 562 116.9
A 10 83 600974 5134.88 572 562 116.9
A 13 248 173443 1478.52 572 562 116.9
B 0 229 152869 1339.6 583 569 113.7
B 0 189 99308 868.49 583 569 113.7
B 0 186 53892 469.02 583 569 113.7
C 15 214 220702 1610.27 574 579 136.7
C 14 254 41288 297.8 574 579 136.7
C 15 159 18118 128.3 574 579 136.7
D 1 52 340607 2393.93 577 561 142.0
D 12 16 162747 1141.79 577 561 142.0
D 13 249 61573 429.53 577 561 142.0

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