ASTROSAT CZTI

Data Quality Report

Orbit 24138

Creation date: 2024-06-27T19:02:33.435410
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/AS1A07_069T01_9000003570_24138cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24138cztM0_level2_quad_clean.evt
Size (bytes)663,004,80088,214,400
Size632.3 MB 84.1 MB
Events in quadrant A3,207,300607,549
Events in quadrant B3,283,952618,276
Events in quadrant C3,310,013583,458
Events in quadrant D9,814,668384,786

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139592
B0140771
C0141601
D0339831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6841300.438532%
B6841440.643181%
C6841560.818594%
D6841273940.038006%

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 7746 6842 0 0 0.00% 0.00%
B 7746 6841 1 1 0.01% 0.01%
C 7746 6842 0 0 0.00% 0.00%
D 7746 6842 2196 2196 28.35% 32.10%

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 12271 68.52 830 811 167.2
A 0 226 7433 39.6 830 811 167.2
A 3 137 7410 39.46 830 811 167.2
B 12 111 19271 115.4 828 809 160.0
B 11 111 17366 103.49 828 809 160.0
B 0 245 16226 96.37 828 809 160.0
C 14 238 124394 661.61 795 802 186.8
C 1 16 56864 300.11 795 802 186.8
C 2 16 14587 73.79 795 802 186.8
D 7 238 7373282 47587.0 630 611 154.9
D 2 234 24723 155.63 630 611 154.9
D 8 195 23215 145.89 630 611 154.9

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