ASTROSAT CZTI

Data Quality Report

Orbit 13060

Creation date: 2024-06-27T16:35:55.337004
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/AS1G08_068T01_9000001922_13060cztM0_level2.evt modeM0/AS1G08_068T01_9000001922_13060cztM0_level2_quad_clean.evt
Size (bytes)203,088,96031,328,640
Size193.7 MB 29.9 MB
Events in quadrant A1,265,473193,428
Events in quadrant B1,931,374197,741
Events in quadrant C1,217,123203,327
Events in quadrant D1,572,237181,833

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052593
B073192
C052512
D062592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23812389.995800%
B238143318.185636%
C23811827.643847%
D238129812.515750%

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 2507 2384 0 0 0.00% 0.00%
B 2507 2384 118 118 4.71% 4.95%
C 2507 2384 0 0 0.00% 0.00%
D 2507 2383 81 81 3.23% 3.40%

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 12 189 27118 397.29 315 306 67.5
A 8 192 13784 199.71 315 306 67.5
A 1 162 4391 60.53 315 306 67.5
B 0 85 366270 5893.44 301 292 62.1
B 4 239 146450 2353.62 301 292 62.1
B 3 64 113321 1820.14 301 292 62.1
C 13 61 2215 25.57 312 312 74.4
C 8 222 821 6.84 312 312 74.4
C 3 202 688 5.05 312 312 74.4
D 1 52 374507 4978.85 302 292 75.2
D 8 195 54700 723.89 302 292 75.2
D 2 234 7689 98.42 302 292 75.2

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