ASTROSAT CZTI

Data Quality Report

Orbit 09629

Creation date: 2024-06-27T15:49:03.239995
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_028T01_9000001370_09629cztM0_level2.evt modeM0/AS1G07_028T01_9000001370_09629cztM0_level2_quad_clean.evt
Size (bytes)198,728,64024,796,800
Size189.5 MB 23.6 MB
Events in quadrant A1,435,221144,077
Events in quadrant B1,470,653146,419
Events in quadrant C1,401,649140,300
Events in quadrant D1,535,613136,865

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A057844
B058501
C057101
D061651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25462549.976434%
B254729511.582254%
C25472549.972517%
D254725810.129564%

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 2652 2550 1 1 0.04% 0.04%
B 2652 2550 10 10 0.38% 0.39%
C 2652 2550 0 0 0.00% 0.00%
D 2652 2550 9 9 0.34% 0.35%

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 14499 183.97 364 355 76.9
A 14 111 8488 105.78 364 355 76.9
A 1 178 4459 53.38 364 355 76.9
B 15 85 36251 484.59 363 353 74.1
B 10 252 9670 125.77 363 353 74.1
B 12 111 8580 111.06 363 353 74.1
C 13 61 2666 26.7 358 358 86.4
C 10 22 1418 12.26 358 358 86.4
C 12 4 1034 7.82 358 358 86.4
D 7 46 68161 760.11 359 349 89.2
D 10 172 44975 500.22 359 349 89.2
D 1 52 34523 383.06 359 349 89.2

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