ASTROSAT CZTI

Data Quality Report

Orbit 45532

Creation date: 2024-06-27T23:13:18.148963
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/AS1A13_071T01_9000006104_45532cztM0_level2.fits modeM0/AS1A13_071T01_9000006104_45532cztM0_level2_quad_clean.evt
Size (bytes)467,403,840106,295,040
Size445.8 MB 101.4 MB
Events in quadrant A5,479,355716,590
Events in quadrant B3,070,414749,617
Events in quadrant C3,254,167696,426
Events in quadrant D5,016,088623,015

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0206221
B0132951
C0141951
D0193051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62052584.157937%
B62051412.272361%
C62051822.933118%
D62063245.220754%

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 7390 6206 58 58 0.78% 0.93%
B 7390 6206 37 37 0.50% 0.60%
C 7390 6206 100 100 1.35% 1.61%
D 7391 6207 243 243 3.29% 3.91%

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 2408594 16553.19 707 694 145.5
A 13 248 335344 2300.56 707 694 145.5
A 3 137 7931 49.75 707 694 145.5
B 5 172 105188 760.43 716 695 137.4
B 15 201 84062 606.69 716 695 137.4
B 0 183 28424 201.79 716 695 137.4
C 12 2 554191 3474.97 684 687 159.3
C 2 14 19507 118.15 684 687 159.3
C 12 249 8423 48.57 684 687 159.3
D 13 249 886405 5218.93 674 650 169.7
D 1 52 787542 4636.42 674 650 169.7
D 5 171 447490 2632.81 674 650 169.7

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