ASTROSAT CZTI

Data Quality Report

Orbit 44059

Creation date: 2024-06-27T22:58:53.757837
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/AS1A13_029T01_9000005940_44059cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44059cztM0_level2_quad_clean.evt
Size (bytes)495,576,000123,390,720
Size472.6 MB 117.7 MB
Events in quadrant A4,504,577825,299
Events in quadrant B3,486,333857,347
Events in quadrant C4,734,562787,772
Events in quadrant D5,026,578735,120

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178250
B0157840
C0194203
D0201730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7629340.445668%
B7630720.943644%
C76292923.827500%
D76291421.861319%

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 7629 7629 0 0 0.00% 0.00%
B 7630 7630 1 1 0.01% 0.01%
C 7629 7629 182 182 2.39% 2.39%
D 7629 7629 131 131 1.72% 1.72%

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 1097361 5964.54 879 863 183.8
A 7 3 11656 58.71 879 863 183.8
A 3 137 10526 52.56 879 863 183.8
B 12 111 23061 126.73 877 850 175.3
B 11 111 21287 116.61 877 850 175.3
B 14 111 21254 116.42 877 850 175.3
C 14 254 769168 3754.59 860 865 204.6
C 1 241 273567 1332.66 860 865 204.6
C 15 208 173298 842.66 860 865 204.6
D 5 222 801932 3657.68 862 836 219.0
D 1 52 507004 2311.08 862 836 219.0
D 2 249 298554 1359.33 862 836 219.0

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