ASTROSAT CZTI

Data Quality Report

Orbit 07965

Creation date: 2024-06-27T15:26:08.454135
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_077T01_9000001090_07965cztM0_level2.evt modeM0/AS1G06_077T01_9000001090_07965cztM0_level2_quad_clean.evt
Size (bytes)513,020,16086,846,400
Size489.3 MB 82.8 MB
Events in quadrant A4,135,371492,213
Events in quadrant B3,321,086558,109
Events in quadrant C3,269,187559,979
Events in quadrant D4,326,542522,958

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01526
B015210
C01526
D01524

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0196432490
B015659947
C015658899
D0191601202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70445958.446905%
B71261982.778557%
C71531011.411995%
D71183494.903063%

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 7605 7254 370 370 4.87% 5.10%
B 7605 7413 0 0 0.00% 0.00%
C 7605 7412 0 0 0.00% 0.00%
D 7605 7392 152 152 2.00% 2.06%

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 0 254 1027942 6199.48 804 783 165.7
A 0 226 7469 40.35 804 783 165.7
A 12 194 6710 35.77 804 783 165.7
B 12 111 19154 108.83 853 831 168.4
B 11 111 15384 86.43 853 831 168.4
B 14 111 11123 61.13 853 831 168.4
C 1 16 19488 95.38 832 836 195.5
C 13 61 6223 27.55 832 836 195.5
C 9 68 2694 9.5 832 836 195.5
D 4 95 766078 3463.69 812 794 220.9
D 1 52 307567 1388.46 812 794 220.9
D 2 14 107584 483.33 812 794 220.9

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