ASTROSAT CZTI

Data Quality Report

Orbit 11084

Creation date: 2024-06-27T16:08:04.437753
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_071T02_9000001620_11084cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11084cztM0_level2_quad_clean.evt
Size (bytes)552,254,40076,849,920
Size526.7 MB 73.3 MB
Events in quadrant A3,619,899489,812
Events in quadrant B3,667,775497,558
Events in quadrant C2,716,623493,644
Events in quadrant D6,311,060423,320

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147722
B0148591
C0122581
D0229651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6052320.528751%
B60522013.321216%
C605250.082617%
D605272912.045605%

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 7187 6053 0 0 0.00% 0.00%
B 7187 6053 114 114 1.59% 1.88%
C 7187 6053 0 0 0.00% 0.00%
D 7187 6053 617 617 8.58% 10.19%

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 8 15 862978 5960.35 706 690 144.7
A 15 239 18333 121.95 706 690 144.7
A 11 29 10079 64.9 706 690 144.7
B 4 239 768159 5697.59 707 691 134.7
B 0 214 61365 450.44 707 691 134.7
B 15 204 23100 166.36 707 691 134.7
C 9 204 19447 116.89 690 697 160.4
C 13 61 5110 27.51 690 697 160.4
C 12 4 3034 14.57 690 697 160.4
D 1 52 2167829 13962.4 642 626 155.2
D 10 253 1346846 8673.15 642 626 155.2
D 8 195 136582 875.91 642 626 155.2

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