ASTROSAT CZTI

Data Quality Report

Orbit 36057

Creation date: 2024-06-27T21:21:50.250380
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/AS1T04_069T01_9000005158_36057cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36057cztM0_level2_quad_clean.evt
Size (bytes)573,203,52055,578,240
Size546.6 MB 53.0 MB
Events in quadrant A2,605,692355,377
Events in quadrant B6,914,321292,180
Events in quadrant C3,867,816349,391
Events in quadrant D3,621,784322,820

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108123
B0240732
C0146282
D0142222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A517650.096600%
B5176168432.534776%
C51761172.260433%
D51762214.269706%

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 9000 5178 0 0 0.00% 0.00%
B 9000 5178 1281 1281 14.23% 24.74%
C 9000 5178 99 99 1.10% 1.91%
D 9000 5178 203 203 2.26% 3.92%

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 10 83 162851 1277.23 627 617 127.0
A 13 6 20171 153.94 627 617 127.0
A 13 254 7479 54.02 627 617 127.0
B 5 236 4390228 42743.04 538 525 102.7
B 5 172 193321 1877.28 538 525 102.7
B 0 213 153885 1493.28 538 525 102.7
C 9 187 1110650 7850.61 607 612 141.4
C 15 214 215456 1519.46 607 612 141.4
C 0 10 124969 879.5 607 612 141.4
D 12 6 288087 1967.43 596 579 146.1
D 7 223 273191 1865.5 596 579 146.1
D 12 233 172353 1175.46 596 579 146.1

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