ASTROSAT CZTI

Data Quality Report

Orbit 33862

Creation date: 2024-06-27T20:53:26.413047
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/AS1A11_046T03_9000004834_33862cztM0_level2.evt modeM0/AS1A11_046T03_9000004834_33862cztM0_level2_quad_clean.evt
Size (bytes)512,781,12091,212,480
Size489.0 MB 87.0 MB
Events in quadrant A2,768,517601,391
Events in quadrant B4,450,888577,641
Events in quadrant C3,160,730604,804
Events in quadrant D4,755,212571,753

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118783
B0170402
C0128052
D0182092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5811100.172087%
B58115088.742041%
C5811851.462743%
D58111452.495268%

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 8887 5813 3 3 0.03% 0.05%
B 8887 5813 362 362 4.07% 6.23%
C 8887 5813 56 56 0.63% 0.96%
D 8887 5813 107 107 1.20% 1.84%

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 15 169 123397 909.41 670 655 135.0
A 13 6 27912 201.95 670 655 135.0
A 10 83 11541 80.66 670 655 135.0
B 5 172 1533982 12288.03 648 630 124.8
B 0 229 128439 1024.24 648 630 124.8
B 4 232 38429 302.92 648 630 124.8
C 15 214 249546 1637.64 653 657 152.0
C 0 10 168405 1103.75 653 657 152.0
C 9 187 88446 577.63 653 657 152.0
D 8 195 1242448 7010.84 644 632 177.1
D 2 250 304330 1714.57 644 632 177.1
D 10 118 161154 906.25 644 632 177.1

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