ASTROSAT CZTI

Data Quality Report

Orbit 29244

Creation date: 2024-06-27T20:01:55.018777
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/AS1T03_272T01_9000004204_29244cztM0_level2.evt modeM0/AS1T03_272T01_9000004204_29244cztM0_level2_quad_clean.evt
Size (bytes)477,400,32036,213,120
Size455.3 MB 34.5 MB
Events in quadrant A1,758,020230,711
Events in quadrant B2,448,972232,572
Events in quadrant C4,979,423202,264
Events in quadrant D5,035,827183,623

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073491
B095751
C0172521
D0173771

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3484611.750861%
B34842095.998852%
C348499428.530425%
D3483127836.692506%

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 3694 3485 0 0 0.00% 0.00%
B 3694 3485 24 24 0.65% 0.69%
C 3694 3485 326 326 8.83% 9.35%
D 3693 3484 1030 1030 27.89% 29.56%

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 13 254 6789 68.61 453 442 92.5
A 3 137 4381 42.58 453 442 92.5
A 0 13 4070 39.22 453 442 92.5
B 10 245 498247 5746.74 444 433 86.6
B 0 229 120491 1385.94 444 433 86.6
B 0 183 42215 482.33 444 433 86.6
C 3 233 3342476 35094.59 401 404 95.2
C 14 238 63947 667.26 401 404 95.2
C 2 114 8039 80.17 401 404 95.2
D 1 52 3310713 37919.7 357 347 87.3
D 8 195 260112 2975.57 357 347 87.3
D 2 250 35284 400.2 357 347 87.3

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