ASTROSAT CZTI

Data Quality Report

Orbit 11372

Creation date: 2024-06-27T16:11:59.865179
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/AS1A04_022T02_9000001662_11372cztM0_level2.evt modeM0/AS1A04_022T02_9000001662_11372cztM0_level2_quad_clean.evt
Size (bytes)492,595,20088,922,880
Size469.8 MB 84.8 MB
Events in quadrant A3,278,488550,248
Events in quadrant B4,020,476551,465
Events in quadrant C3,136,601584,423
Events in quadrant D4,026,090538,023

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141793
B0162632
C0137482
D0163782

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6725861.278810%
B67251602.379182%
C6725560.832714%
D67252423.598513%

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 8710 6727 0 0 0.00% 0.00%
B 8710 6727 44 44 0.51% 0.65%
C 8710 6728 1 1 0.01% 0.01%
D 8710 6728 149 149 1.71% 2.21%

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 15 174 57411 338.66 820 802 167.2
A 11 29 24890 144.11 820 802 167.2
A 8 15 12487 69.91 820 802 167.2
B 3 64 337173 2162.45 812 791 155.6
B 4 239 237044 1518.77 812 791 155.6
B 3 189 134759 861.22 812 791 155.6
C 14 234 6357 29.78 802 808 186.3
C 13 61 5841 27.01 802 808 186.3
C 14 67 3770 15.9 802 808 186.3
D 1 52 255967 1366.77 785 767 186.7
D 10 253 180500 962.59 785 767 186.7
D 2 120 145134 773.18 785 767 186.7

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