ASTROSAT CZTI

Data Quality Report

Orbit 13705

Creation date: 2024-06-27T16:44:59.341429
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/AS1T02_041T01_9000002032_13705cztM0_level2.evt modeM0/AS1T02_041T01_9000002032_13705cztM0_level2_quad_clean.evt
Size (bytes)181,189,44053,631,360
Size172.8 MB 51.1 MB
Events in quadrant A1,229,838358,597
Events in quadrant B1,385,011371,970
Events in quadrant C1,273,606369,121
Events in quadrant D1,429,233347,143

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051702
B056121
C052551
D058781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247030.121457%
B2470251.012146%
C2470110.445344%
D2470401.619433%

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 3726 2472 0 0 0.00% 0.00%
B 3726 2472 5 5 0.13% 0.20%
C 3726 2472 1 1 0.03% 0.04%
D 3726 2472 18 18 0.48% 0.73%

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 15 157 9016 135.23 316 309 64.4
A 1 162 4658 67.54 316 309 64.4
A 0 226 2866 39.71 316 309 64.4
B 8 250 55483 904.2 320 312 61.0
B 0 219 26792 433.98 320 312 61.0
B 3 64 23805 385.03 320 312 61.0
C 3 233 44887 616.43 314 316 72.3
C 14 234 2866 35.27 314 316 72.3
C 13 61 2323 27.76 314 316 72.3
D 13 122 158996 2137.55 307 298 74.2
D 1 52 59070 791.62 307 298 74.2
D 8 195 20555 272.85 307 298 74.2

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