ASTROSAT CZTI

Data Quality Report

Orbit 36130

Creation date: 2022-08-10T17:48:45.935181
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_36130cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36130cztM0_level2_quad_clean.evt
Size (bytes)445,746,24060,796,800
Size425.1 MB 58.0 MB
Events in quadrant A2,664,293384,643
Events in quadrant B3,092,800384,858
Events in quadrant C3,041,255371,118
Events in quadrant D4,358,395346,061

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109583
B0122832
C0119022
D0162942

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A504360.118977%
B50431823.608963%
C50431322.617490%
D50434679.260361%

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 7105 5044 2 2 0.03% 0.04%
B 7105 5044 116 116 1.63% 2.30%
C 7105 5044 98 98 1.38% 1.94%
D 7105 5044 417 417 5.87% 8.27%

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 166324 1337.76 614 603 123.9
A 15 223 98858 793.15 614 603 123.9
A 13 6 9408 71.08 614 603 123.9
B 5 172 544594 4727.13 609 594 115.1
B 5 255 63894 550.05 609 594 115.1
B 0 155 35393 302.39 609 594 115.1
C 0 207 280812 2011.84 594 600 139.3
C 15 214 213037 1525.24 594 600 139.3
C 0 10 193651 1386.05 594 600 139.3
D 12 17 684647 4851.88 568 554 141.0
D 12 6 615350 4360.4 568 554 141.0
D 1 52 314104 2223.83 568 554 141.0

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