ASTROSAT CZTI

Data Quality Report

Orbit 04933

Creation date: 2024-06-27T14:49:00.728771
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/AS1G05_021T01_9000000624_04933cztM0_level2.evt modeM0/AS1G05_021T01_9000000624_04933cztM0_level2_quad_clean.evt
Size (bytes)517,371,84097,891,200
Size493.4 MB 93.4 MB
Events in quadrant A3,211,093651,719
Events in quadrant B2,867,823663,043
Events in quadrant C5,754,301608,635
Events in quadrant D3,437,206630,643

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135352
B0123911
C0210691
D0140581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58652474.211424%
B5865591.005968%
C586593715.976130%
D58651482.523444%

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 7045 5865 183 183 2.60% 3.12%
B 7045 5865 1 1 0.01% 0.02%
C 7045 5865 813 813 11.54% 13.86%
D 7045 5865 100 100 1.42% 1.71%

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 31 510046 3670.39 693 679 138.8
A 0 50 16748 115.79 693 679 138.8
A 12 194 6953 45.21 693 679 138.8
B 15 204 56025 416.57 700 685 132.8
B 0 219 31919 235.12 700 685 132.8
B 15 54 30623 225.36 700 685 132.8
C 9 247 3255767 22480.5 634 638 144.8
C 1 16 24464 164.55 634 638 144.8
C 13 61 5239 31.78 634 638 144.8
D 2 33 334032 2056.04 677 657 162.1
D 13 53 157222 965.59 677 657 162.1
D 7 67 74540 455.66 677 657 162.1

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