ASTROSAT CZTI

Data Quality Report

Orbit 09723

Creation date: 2024-06-27T15:49:51.358636
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_029T01_9000001386_09723cztM0_level2.evt modeM0/AS1A02_029T01_9000001386_09723cztM0_level2_quad_clean.evt
Size (bytes)327,778,56053,326,080
Size312.6 MB 50.9 MB
Events in quadrant A2,210,219325,646
Events in quadrant B2,277,414333,741
Events in quadrant C2,143,568328,287
Events in quadrant D2,978,249299,635

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A095652
B098901
C094771
D0120981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4650180.387097%
B4650210.451613%
C465080.172043%
D46502014.322581%

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 5750 4651 4 4 0.07% 0.09%
B 5750 4651 0 0 0.00% 0.00%
C 5750 4651 1 1 0.02% 0.02%
D 5750 4651 204 204 3.55% 4.39%

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 26322 222.82 556 542 115.7
A 15 174 19866 167.02 556 542 115.7
A 1 178 10684 87.66 556 542 115.7
B 0 219 41981 381.94 561 546 108.5
B 0 214 33077 299.86 561 546 108.5
B 12 111 11885 104.52 561 546 108.5
C 14 234 19780 150.69 543 546 127.6
C 13 61 4104 27.88 543 546 127.6
C 8 222 2045 11.74 543 546 127.6
D 1 52 762987 5935.1 525 512 128.5
D 10 199 116692 904.34 525 512 128.5
D 12 233 62438 482.03 525 512 128.5

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