ASTROSAT CZTI

Data Quality Report

Orbit 28091

Creation date: 2024-06-27T19:47:58.376683
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/AS1A10_057T05_9000004060_28091cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28091cztM0_level2_quad_clean.evt
Size (bytes)126,475,20034,741,440
Size120.6 MB 33.1 MB
Events in quadrant A812,017242,644
Events in quadrant B813,228239,333
Events in quadrant C812,318226,294
Events in quadrant D1,278,075222,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034650
B034620
C034520
D049220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A165130.181708%
B165160.363416%
C165130.181708%
D1651694.179285%

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 1651 1651 1 1 0.06% 0.06%
B 1651 1651 0 0 0.00% 0.00%
C 1651 1651 0 0 0.00% 0.00%
D 1651 1651 55 55 3.33% 3.33%

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 13 170 9932 230.09 204 201 42.3
A 12 96 8053 185.66 204 201 42.3
A 0 13 4476 101.08 204 201 42.3
B 4 52 6284 147.3 205 201 41.3
B 12 111 4776 110.78 205 201 41.3
B 11 111 4304 99.36 205 201 41.3
C 14 238 31718 662.87 194 194 47.6
C 3 233 22276 464.33 194 194 47.6
C 13 61 1290 23.05 194 194 47.6
D 12 1 232060 4964.39 191 186 46.7
D 5 222 99494 2126.17 191 186 46.7
D 8 195 87626 1872.08 191 186 46.7

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