ASTROSAT CZTI

Data Quality Report

Orbit 06773

Creation date: 2024-06-27T15:11:30.649239
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_086T02_9000000936_06773cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06773cztM0_level2_quad_clean.evt
Size (bytes)475,715,52074,136,960
Size453.7 MB 70.7 MB
Events in quadrant A3,239,626456,026
Events in quadrant B3,340,488464,808
Events in quadrant C3,152,917450,906
Events in quadrant D4,242,012429,158

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137163
B0140852
C0134872
D0170042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63601131.776730%
B63601241.949686%
C6360741.163522%
D63601512.374214%

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 7620 6361 0 0 0.00% 0.00%
B 7620 6361 2 2 0.03% 0.03%
C 7620 6361 0 0 0.00% 0.00%
D 7620 6361 47 47 0.62% 0.74%

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 8 15 35737 210.57 826 808 165.9
A 4 2 11909 66.92 826 808 165.9
A 0 226 7830 42.33 826 808 165.9
B 4 48 55120 345.98 832 815 157.0
B 0 214 26490 163.58 832 815 157.0
B 4 81 18558 113.04 832 815 157.0
C 9 247 38033 202.02 796 802 184.3
C 13 61 6320 29.94 796 802 184.3
C 5 236 4469 19.9 796 802 184.3
D 8 195 651767 3422.76 788 766 190.2
D 2 152 325125 1705.38 788 766 190.2
D 2 216 186427 976.15 788 766 190.2

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