ASTROSAT CZTI

Data Quality Report

Orbit 03390

Creation date: 2024-06-27T14:28:23.293529
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/AS1G05_112T01_9000000452_03390cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03390cztM0_level2_quad_clean.evt
Size (bytes)53,496,00013,763,520
Size51.0 MB 13.1 MB
Events in quadrant A369,77286,261
Events in quadrant B380,89088,220
Events in quadrant C411,43587,805
Events in quadrant D394,27084,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A042
B042
C055
D043

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06242
B06751
C06852
D06343

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067324981
B068455079
C070795273
D066674798

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86810.115207%
B87850.569476%
C88420.226244%
D88750.563698%

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 1652 1086 0 0 0.00% 0.00%
B 2549 1120 0 0 0.00% 0.00%
C 2578 1096 1 1 0.04% 0.09%
D 2619 1117 3 3 0.11% 0.27%

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 0 118 7609 355.64 93 91 21.1
A 0 226 1638 73.18 93 91 21.1
A 12 194 1010 43.47 93 91 21.1
B 15 204 7833 375.64 95 93 20.6
B 2 249 2894 135.94 95 93 20.6
B 14 167 1532 69.84 95 93 20.6
C 9 144 25091 1048.1 92 93 23.9
C 10 19 7620 315.59 92 93 23.9
C 8 128 4462 183.18 92 93 23.9
D 13 223 42750 1767.44 92 89 24.1
D 5 233 2852 114.47 92 89 24.1
D 13 137 1035 39.19 92 89 24.1

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