ASTROSAT CZTI

Data Quality Report

Orbit 06030

Creation date: 2024-06-27T15:01:55.769528
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/AS1A02_006T01_9000000776_06030cztM0_level2.evt modeM0/AS1A02_006T01_9000000776_06030cztM0_level2_quad_clean.evt
Size (bytes)1,451,453,760264,453,120
Size1.4 GB 252.2 MB
Events in quadrant A12,253,9671,624,956
Events in quadrant B10,950,9241,678,604
Events in quadrant C9,640,9531,646,532
Events in quadrant D9,667,5791,590,744

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A048053
B048248
C048155
D048051

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0567686856
B0521035524
C0494745156
D0501525192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A211297193.402906%
B213497783.644199%
C213625802.715102%
D213855772.698153%

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 24595 22503 38 38 0.15% 0.17%
B 24595 22689 73 73 0.30% 0.32%
C 24595 22722 2 2 0.01% 0.01%
D 24595 22674 14 14 0.06% 0.06%

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 34 2386197 4760.62 2445 2386 500.7
A 15 234 434607 863.17 2445 2386 500.7
A 13 251 23521 42.21 2445 2386 500.7
B 15 204 576778 1187.43 2503 2439 483.7
B 3 64 483652 994.9 2503 2439 483.7
B 12 111 50334 99.02 2503 2439 483.7
C 1 241 23203 36.46 2443 2450 569.1
C 8 128 19966 30.78 2443 2450 569.1
C 13 61 19319 29.64 2443 2450 569.1
D 2 63 147056 243.92 2432 2360 593.2
D 8 195 83011 135.96 2432 2360 593.2
D 5 97 72726 118.62 2432 2360 593.2

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