ASTROSAT CZTI

Data Quality Report

Orbit 30037

Creation date: 2024-06-27T20:10:10.410627
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/AS1A10_071T04_9000004316_30037cztM0_level2.evt modeM0/AS1A10_071T04_9000004316_30037cztM0_level2_quad_clean.evt
Size (bytes)557,553,60084,525,120
Size531.7 MB 80.6 MB
Events in quadrant A3,661,411539,957
Events in quadrant B5,531,995533,870
Events in quadrant C3,666,641506,148
Events in quadrant D3,566,388507,107

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147182
B0208242
C0146632
D0144792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67821442.123267%
B67832233.287631%
C67831972.904320%
D6783951.400560%

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 7927 6783 0 0 0.00% 0.00%
B 7928 6784 1 1 0.01% 0.01%
C 7928 6784 0 0 0.00% 0.00%
D 7928 6784 2 2 0.03% 0.03%

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 8 192 13378 66.24 946 929 188.0
A 13 254 11710 57.36 946 929 188.0
A 3 137 9047 43.19 946 929 188.0
B 6 159 1888937 10821.12 922 901 174.5
B 12 111 21591 118.58 922 901 174.5
B 11 111 19994 109.43 922 901 174.5
C 14 238 149395 714.68 886 894 207.8
C 3 233 45783 216.03 886 894 207.8
C 2 114 15787 71.67 886 894 207.8
D 8 195 117500 548.61 901 884 212.6
D 2 234 22519 101.78 901 884 212.6
D 2 250 20771 93.56 901 884 212.6

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