ASTROSAT CZTI

Data Quality Report

Orbit 30353

Creation date: 2024-06-27T20:14:08.177518
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_053T15_9000004364_30353cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30353cztM0_level2_quad_clean.evt
Size (bytes)715,291,20068,509,440
Size682.2 MB 65.3 MB
Events in quadrant A3,511,413423,393
Events in quadrant B5,213,346424,777
Events in quadrant C7,895,918393,294
Events in quadrant D4,623,950399,787

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143322
B0193202
C0279192
D0176992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6204961.547389%
B62041322.127660%
C6204128520.712444%
D62042073.336557%

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 7504 6204 7 7 0.09% 0.11%
B 7504 6204 0 0 0.00% 0.00%
C 7504 6204 688 688 9.17% 11.09%
D 7504 6204 140 140 1.87% 2.26%

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 8 192 25177 138.98 895 879 174.8
A 14 239 24442 134.77 895 879 174.8
A 13 254 11634 61.51 895 879 174.8
B 6 159 1716843 10483.37 885 867 163.7
B 12 111 19271 112.44 885 867 163.7
B 11 111 17536 101.84 885 867 163.7
C 3 233 4571701 24893.95 802 810 183.6
C 14 238 134790 729.68 802 810 183.6
C 0 10 44090 235.71 802 810 183.6
D 1 52 743487 3477.29 839 823 213.6
D 12 233 334544 1562.54 839 823 213.6
D 2 250 156545 729.12 839 823 213.6

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