ASTROSAT CZTI

Data Quality Report

Orbit 07234

Creation date: 2024-06-27T15:17:08.458084
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/AS1G05_246T03_9000000990_07234cztM0_level2.evt modeM0/AS1G05_246T03_9000000990_07234cztM0_level2_quad_clean.evt
Size (bytes)268,309,44049,996,800
Size255.9 MB 47.7 MB
Events in quadrant A1,799,829317,634
Events in quadrant B1,856,578325,693
Events in quadrant C2,141,145319,067
Events in quadrant D2,088,214302,560

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A076452
B079341
C089251
D086491

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3513280.797040%
B3513541.537148%
C3513381.081697%
D3513972.761173%

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 4688 3513 1 1 0.02% 0.03%
B 4688 3514 16 16 0.34% 0.46%
C 4688 3513 0 0 0.00% 0.00%
D 4688 3513 59 59 1.26% 1.68%

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 15 122920 1362.91 432 422 89.9
A 13 248 8857 93.84 432 422 89.9
A 14 111 4945 50.32 432 422 89.9
B 0 214 63577 747.83 433 423 84.4
B 4 81 60126 706.96 433 423 84.4
B 15 85 33968 397.22 433 423 84.4
C 9 68 502559 5104.26 419 421 98.4
C 13 61 3277 29.03 419 421 98.4
C 12 4 2103 17.1 419 421 98.4
D 2 14 219782 2153.06 414 402 101.9
D 2 216 208019 2037.62 414 402 101.9
D 14 34 34736 336.96 414 402 101.9

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