ASTROSAT CZTI

Data Quality Report

Orbit 37332

Creation date: 2024-06-27T21:38:34.789223
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/AS1A11_030T02_9000005310_37332cztM0_level2.evt modeM0/AS1A11_030T02_9000005310_37332cztM0_level2_quad_clean.evt
Size (bytes)471,948,48076,682,880
Size450.1 MB 73.1 MB
Events in quadrant A2,911,234498,519
Events in quadrant B3,223,339513,807
Events in quadrant C3,285,193496,525
Events in quadrant D4,511,460439,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117593
B0129532
C0128612
D0168892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0390

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5336110.206147%
B53361162.173913%
C5336871.630435%
D53365269.857571%

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 7429 5337 6 6 0.08% 0.11%
B 7429 5337 29 29 0.39% 0.54%
C 7429 5337 71 71 0.96% 1.33%
D 7429 5337 555 555 7.47% 10.40%

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 272540 2093.92 656 647 129.8
A 13 248 49310 374.77 656 647 129.8
A 9 143 16874 124.97 656 647 129.8
B 0 190 395300 3224.0 650 636 122.4
B 5 255 70468 570.46 650 636 122.4
B 12 18 65887 533.03 650 636 122.4
C 1 23 273010 1830.49 641 648 148.8
C 15 214 227267 1523.06 641 648 148.8
C 0 10 133761 894.63 641 648 148.8
D 10 253 1020063 6797.61 622 608 150.0
D 12 227 683584 4554.01 622 608 150.0
D 2 249 107016 709.52 622 608 150.0

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