ASTROSAT CZTI

Data Quality Report

Orbit 09046

Creation date: 2024-06-27T15:40:30.442272
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/AS1G07_027T01_9000001258_09046cztM0_level2.evt modeM0/AS1G07_027T01_9000001258_09046cztM0_level2_quad_clean.evt
Size (bytes)318,481,92064,595,520
Size303.7 MB 61.6 MB
Events in quadrant A2,405,650417,654
Events in quadrant B2,211,168420,637
Events in quadrant C2,099,339414,491
Events in quadrant D2,625,675390,859

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114451546
B0107461454
C0105381401
D0127591992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131
B0131
C0131
D0131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010412
B010418
C010414
D010418

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4437120.270453%
B4435210.473506%
C4457120.269239%
D4424972.192586%

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 6441 4868 0 0 0.00% 0.00%
B 6440 4880 4 4 0.06% 0.08%
C 6439 4884 4 4 0.06% 0.08%
D 6441 4857 70 70 1.09% 1.44%

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 5 101809 890.83 555 547 113.7
A 1 162 76367 667.01 555 547 113.7
A 1 178 20083 171.86 555 547 113.7
B 6 51 18694 172.63 554 543 105.1
B 10 252 12045 109.39 554 543 105.1
B 12 111 10886 98.37 554 543 105.1
C 3 254 17359 135.73 534 538 123.9
C 13 61 3977 27.75 534 538 123.9
C 3 202 1376 6.76 534 538 123.9
D 6 225 222258 1764.18 523 510 125.7
D 2 14 210818 1673.16 523 510 125.7
D 12 233 76078 601.2 523 510 125.7

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