ASTROSAT CZTI

Data Quality Report

Orbit 15048

Creation date: 2024-06-27T17:03:01.984702
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/AS1T02_060T01_9000002216_15048cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15048cztM0_level2_quad_clean.evt
Size (bytes)439,479,36085,654,080
Size419.1 MB 81.7 MB
Events in quadrant A2,993,606541,083
Events in quadrant B3,120,043554,270
Events in quadrant C3,820,128535,584
Events in quadrant D2,944,806520,254

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130962
B0134011
C0158521
D0132601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6346340.535771%
B6346490.772140%
C6346310.488497%
D6346400.630318%

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 7337 6347 0 0 0.00% 0.00%
B 7337 6347 2 2 0.03% 0.03%
C 7337 6348 0 0 0.00% 0.00%
D 7337 6348 12 12 0.16% 0.19%

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 1 162 18184 112.3 769 753 155.2
A 1 178 7015 40.34 769 753 155.2
A 0 226 6525 37.19 769 753 155.2
B 3 64 101995 685.4 767 749 147.7
B 12 111 17761 115.17 767 749 147.7
B 11 111 15481 99.73 767 749 147.7
C 3 233 845487 4861.66 749 754 173.8
C 7 247 25176 140.55 749 754 173.8
C 8 128 11946 64.41 749 754 173.8
D 10 70 65748 358.85 748 726 181.2
D 13 104 50601 275.25 748 726 181.2
D 2 234 20685 110.15 748 726 181.2

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