ASTROSAT CZTI

Data Quality Report

Orbit 04332

Creation date: 2024-06-27T14:40:30.377803
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/AS1G05_219T01_9000000540_04332cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04332cztM0_level2_quad_clean.evt
Size (bytes)690,638,40065,920,320
Size658.6 MB 62.9 MB
Events in quadrant A2,920,404471,247
Events in quadrant B11,585,528181,490
Events in quadrant C2,861,453462,665
Events in quadrant D3,128,616446,783

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015416
B015321
C015327
D015414

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B031
C031
D041

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154722273
B05243414360
C0154142214
D0163602376

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6396280.437774%
B5393389172.149082%
C642970.108882%
D6394590.922740%

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 7762 6969 5 5 0.06% 0.07%
B 7745 5743 3679 3679 47.50% 64.06%
C 7762 6963 0 0 0.00% 0.00%
D 7763 6972 48 48 0.62% 0.69%

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 13 251 44717 288.89 736 721 152.3
A 8 15 20816 131.95 736 721 152.3
A 15 234 18808 118.76 736 721 152.3
B 3 0 9936791 129248.49 394 385 76.9
B 14 167 28103 360.54 394 385 76.9
B 4 48 27331 350.5 394 385 76.9
C 9 247 31982 187.08 712 715 167.1
C 9 16 13728 77.86 712 715 167.1
C 8 128 11791 66.27 712 715 167.1
D 2 37 112987 650.28 706 683 172.7
D 2 136 104482 601.04 706 683 172.7
D 9 35 82670 474.74 706 683 172.7

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