ASTROSAT CZTI

Data Quality Report

Orbit 05286

Creation date: 2024-06-27T14:53:31.077568
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_240T02_9000000670_05286cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05286cztM0_level2_quad_clean.evt
Size (bytes)699,482,880100,344,960
Size667.1 MB 95.7 MB
Events in quadrant A5,132,501624,250
Events in quadrant B4,035,141636,155
Events in quadrant C3,881,712620,929
Events in quadrant D7,554,379562,149

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209853
B0177172
C0175422
D0284012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85663043.548914%
B8566871.015643%
C8566740.863880%
D8566114413.355125%

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 9976 8568 125 125 1.25% 1.46%
B 9976 8568 1 1 0.01% 0.01%
C 9976 8568 0 0 0.00% 0.00%
D 9976 8568 842 842 8.44% 9.83%

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 13 251 1169108 5678.43 998 973 205.7
A 14 111 48813 232.56 998 973 205.7
A 11 116 36341 171.93 998 973 205.7
B 15 204 38633 190.17 1018 992 197.9
B 4 80 19338 92.69 1018 992 197.9
B 12 111 18359 87.74 1018 992 197.9
C 8 128 11814 46.85 988 992 231.0
C 13 61 8037 30.5 988 992 231.0
C 8 112 5463 19.36 988 992 231.0
D 11 145 3453730 15059.06 932 900 229.3
D 1 239 147794 640.66 932 900 229.3
D 2 136 127033 550.11 932 900 229.3

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