ASTROSAT CZTI

Data Quality Report

Orbit 09711

Creation date: 2024-06-27T15:49:38.643511
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/AS1A03_029T01_9000001384_09711cztM0_level2.evt modeM0/AS1A03_029T01_9000001384_09711cztM0_level2_quad_clean.evt
Size (bytes)470,851,20071,570,880
Size449.0 MB 68.3 MB
Events in quadrant A3,156,173430,725
Events in quadrant B3,310,602442,059
Events in quadrant C3,153,433437,361
Events in quadrant D4,207,298412,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132163
B0135572
C0132102
D0167272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6367280.439768%
B6367370.581121%
C6367310.486886%
D6367671.052301%

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 7682 6368 0 0 0.00% 0.00%
B 7682 6368 0 0 0.00% 0.00%
C 7682 6368 1 1 0.01% 0.02%
D 7682 6368 28 28 0.36% 0.44%

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 15 174 12744 73.58 813 799 162.3
A 8 5 7749 42.81 813 799 162.3
A 0 226 7541 41.53 813 799 162.3
B 0 214 50888 327.43 824 806 153.0
B 0 85 33243 212.07 824 806 153.0
B 12 111 16558 102.99 824 806 153.0
C 14 234 13025 66.47 803 810 183.8
C 13 61 6080 28.68 803 810 183.8
C 12 4 4680 21.06 803 810 183.8
D 1 52 980741 5230.5 785 768 187.4
D 12 233 64960 342.62 785 768 187.4
D 8 195 60289 317.69 785 768 187.4

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