ASTROSAT CZTI

Data Quality Report

Orbit 32919

Creation date: 2024-06-27T20:43:28.388835
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/AS1C07_005T01_9000004748_32919cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32919cztM0_level2_quad_clean.evt
Size (bytes)503,735,04099,881,280
Size480.4 MB 95.3 MB
Events in quadrant A2,361,050685,551
Events in quadrant B3,104,776695,544
Events in quadrant C2,739,667690,234
Events in quadrant D6,702,287593,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103252
B0124731
C0112301
D0235221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A513650.097352%
B51361643.193146%
C5136671.304517%
D513676914.972741%

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 7139 5137 0 0 0.00% 0.00%
B 7139 5137 97 97 1.36% 1.89%
C 7139 5137 61 61 0.85% 1.19%
D 7139 5137 700 700 9.81% 13.63%

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 15 169 13428 106.51 604 593 120.5
A 13 254 9841 76.75 604 593 120.5
A 3 137 5198 38.22 604 593 120.5
B 5 172 492832 4377.88 604 589 112.4
B 0 230 54797 482.11 604 589 112.4
B 0 219 45463 399.1 604 589 112.4
C 0 10 210443 1523.83 599 604 137.7
C 14 67 114089 824.12 599 604 137.7
C 3 233 38378 274.31 599 604 137.7
D 8 195 2300732 15877.2 556 544 144.9
D 12 227 1385445 9559.37 556 544 144.9
D 2 120 281981 1942.64 556 544 144.9

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