ASTROSAT CZTI

Data Quality Report

Orbit 28060

Creation date: 2024-06-27T19:47:36.673740
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/AS1A10_057T02_9000004054_28060cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28060cztM0_level2_quad_clean.evt
Size (bytes)160,842,24030,951,360
Size153.4 MB 29.5 MB
Events in quadrant A850,945210,270
Events in quadrant B877,684208,905
Events in quadrant C942,936198,713
Events in quadrant D2,074,560186,789

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A036900
B037770
C038910
D074260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180630.166113%
B180750.276702%
C1806110.609081%
D18061538.471761%

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 1806 1806 1 1 0.06% 0.06%
B 1807 1807 2 2 0.11% 0.11%
C 1806 1806 1 1 0.06% 0.06%
D 1806 1806 150 150 8.31% 8.31%

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 0 13 19901 432.64 213 208 45.5
A 13 248 6707 142.78 213 208 45.5
A 13 254 3203 65.8 213 208 45.5
B 10 245 11333 254.59 213 207 43.7
B 4 200 11052 248.16 213 207 43.7
B 4 52 7563 168.32 213 207 43.7
C 3 233 95771 1880.36 207 208 50.8
C 14 238 33138 647.95 207 208 50.8
C 8 128 3433 63.46 207 208 50.8
D 8 195 715599 14189.83 201 195 50.4
D 2 250 271052 5372.37 201 195 50.4
D 7 223 159882 3167.35 201 195 50.4

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