ASTROSAT CZTI

Data Quality Report

Orbit 34088

Creation date: 2024-06-27T20:56:23.950075
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/AS1A05_208T01_9000004870_34088cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34088cztM0_level2_quad_clean.evt
Size (bytes)473,235,84083,759,040
Size451.3 MB 79.9 MB
Events in quadrant A2,600,221551,571
Events in quadrant B4,177,888559,802
Events in quadrant C3,363,566539,522
Events in quadrant D3,828,635512,098

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109042
B0159211
C0131011
D0149341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A534390.168445%
B53433145.876848%
C53431562.919708%
D5343921.721879%

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 7346 5344 0 0 0.00% 0.00%
B 7346 5344 161 161 2.19% 3.01%
C 7346 5344 129 129 1.76% 2.41%
D 7346 5344 95 95 1.29% 1.78%

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 10 83 19109 138.26 668 658 133.4
A 13 254 8242 56.83 668 658 133.4
A 3 137 6257 41.96 668 658 133.4
B 5 31 601322 4849.11 659 641 123.9
B 5 172 596153 4807.39 659 641 123.9
B 5 15 225916 1818.58 659 641 123.9
C 0 10 551878 3705.6 647 655 148.8
C 15 214 232124 1556.05 647 655 148.8
C 14 67 28104 184.53 647 655 148.8
D 8 195 702472 4436.62 643 627 158.2
D 2 250 311637 1966.01 643 627 158.2
D 13 249 90300 566.85 643 627 158.2

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