ASTROSAT CZTI

Data Quality Report

Orbit 05659

Creation date: 2024-06-27T14:57:41.311439
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/AS1G06_032T02_9000000730_05659cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05659cztM0_level2_quad_clean.evt
Size (bytes)272,744,64060,851,520
Size260.1 MB 58.0 MB
Events in quadrant A1,817,521402,550
Events in quadrant B2,116,720398,528
Events in quadrant C1,840,052398,719
Events in quadrant D2,232,667380,752

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078001
B087681
C078341
D089731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A370590.242915%
B3705140.377868%
C370570.188934%
D3705300.809717%

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 3705 3705 2 2 0.05% 0.05%
B 3705 3705 7 7 0.19% 0.19%
C 3705 3705 2 2 0.05% 0.05%
D 3705 3705 30 30 0.81% 0.81%

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 50 19042 197.52 463 455 94.1
A 13 6 15772 162.77 463 455 94.1
A 0 226 4707 45.18 463 455 94.1
B 15 204 74259 824.14 459 448 89.6
B 11 51 67337 746.85 459 448 89.6
B 0 219 56981 631.22 459 448 89.6
C 1 16 94204 926.42 438 441 101.2
C 5 250 27889 271.2 438 441 101.2
C 5 233 4638 41.47 438 441 101.2
D 10 231 123913 1124.78 444 430 109.8
D 12 17 105470 956.78 444 430 109.8
D 2 152 80612 730.36 444 430 109.8

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