ASTROSAT CZTI

Data Quality Report

Orbit 28360

Creation date: 2024-06-27T19:50:56.109930
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_101T02_9000004084_28360cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28360cztM0_level2_quad_clean.evt
Size (bytes)580,475,52072,694,080
Size553.6 MB 69.3 MB
Events in quadrant A3,407,888438,701
Events in quadrant B3,670,500445,362
Events in quadrant C3,523,329425,098
Events in quadrant D6,498,600399,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146780
B0152740
C0148010
D0242000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70801381.949153%
B70801862.627119%
C70801852.612994%
D70805107.203390%

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 7380 7081 0 0 0.00% 0.00%
B 7380 7081 6 6 0.08% 0.08%
C 7380 7080 3 3 0.04% 0.04%
D 7379 7079 295 295 4.00% 4.17%

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 13 254 12567 65.01 882 863 180.0
A 3 137 8961 44.98 882 863 180.0
A 0 226 7434 36.5 882 863 180.0
B 10 245 146313 841.11 877 850 172.9
B 10 246 43911 248.99 877 850 172.9
B 0 230 35688 201.44 877 850 172.9
C 14 238 134170 661.35 849 856 201.6
C 3 233 73610 360.92 849 856 201.6
C 13 61 5714 24.1 849 856 201.6
D 8 195 2312424 11585.99 828 807 199.5
D 1 52 907738 4545.6 828 807 199.5
D 13 104 58814 290.74 828 807 199.5

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