ASTROSAT CZTI

Data Quality Report

Orbit 32980

Creation date: 2024-06-27T20:44:11.569782
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/AS1C07_003T01_9000004754_32980cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32980cztM0_level2_quad_clean.evt
Size (bytes)486,616,32073,975,680
Size464.1 MB 70.5 MB
Events in quadrant A3,087,643445,717
Events in quadrant B3,771,886453,025
Events in quadrant C3,446,384444,728
Events in quadrant D3,973,276426,420

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01402
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01362350
B01554787
C01453084
D01602058

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6747130.192678%
B67372103.117114%
C6735891.321455%
D6749640.948289%

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 9456 6773 1 1 0.01% 0.01%
B 9456 6772 127 127 1.34% 1.88%
C 9456 6773 62 62 0.66% 0.92%
D 9455 6772 48 48 0.51% 0.71%

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 9 143 13637 80.72 787 769 159.4
A 12 227 13414 79.32 787 769 159.4
A 13 6 12409 73.01 787 769 159.4
B 5 172 511186 3393.55 779 757 150.4
B 0 197 77085 507.46 779 757 150.4
B 5 200 36712 239.04 779 757 150.4
C 0 10 254088 1431.03 762 767 177.0
C 14 67 122242 686.22 762 767 177.0
C 8 79 26932 147.81 762 767 177.0
D 8 195 600519 3008.86 756 740 199.3
D 2 250 179004 894.28 756 740 199.3
D 12 33 60849 301.54 756 740 199.3

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