ASTROSAT CZTI

Data Quality Report

Orbit 34094

Creation date: 2024-06-27T20:56:29.577284
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/AS1A05_208T01_9000004870_34094cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34094cztM0_level2_quad_clean.evt
Size (bytes)510,180,48057,594,240
Size486.5 MB 54.9 MB
Events in quadrant A2,701,055342,055
Events in quadrant B3,482,615338,902
Events in quadrant C3,595,195334,590
Events in quadrant D5,275,187318,826

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117823
B0139152
C0140502
D0195832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A585850.085353%
B58581702.902014%
C58581312.236258%
D58583766.418573%

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 7201 5859 0 0 0.00% 0.00%
B 7201 5859 142 142 1.97% 2.42%
C 7201 5859 111 111 1.54% 1.89%
D 7201 5859 330 330 4.58% 5.63%

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 10 83 20339 140.21 690 676 140.2
A 13 6 12561 84.75 690 676 140.2
A 13 254 10807 72.24 690 676 140.2
B 5 172 668549 5089.8 680 662 131.2
B 0 190 42896 321.85 680 662 131.2
B 4 232 30123 224.51 680 662 131.2
C 0 10 461866 2936.38 669 674 157.1
C 15 214 251975 1600.02 669 674 157.1
C 0 207 216615 1374.88 669 674 157.1
D 8 195 1079193 6635.75 656 637 162.5
D 2 250 605359 3720.52 656 637 162.5
D 7 223 479998 2949.24 656 637 162.5

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