ASTROSAT CZTI

Data Quality Report

Orbit 13162

Creation date: 2024-06-27T16:37:05.357707
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/AS1A04_094T01_9000001942_13162cztM0_level2.evt modeM0/AS1A04_094T01_9000001942_13162cztM0_level2_quad_clean.evt
Size (bytes)570,283,20085,907,520
Size543.9 MB 81.9 MB
Events in quadrant A3,679,568520,971
Events in quadrant B4,447,379525,668
Events in quadrant C3,334,030533,980
Events in quadrant D5,305,740503,227

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157332
B0180591
C0152491
D0208631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74252463.313131%
B74255527.434343%
C74251802.424242%
D74255577.501684%

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 7581 7427 0 0 0.00% 0.00%
B 7581 7427 229 229 3.02% 3.08%
C 7581 7427 1 1 0.01% 0.01%
D 7581 7427 394 394 5.20% 5.30%

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 12 189 115319 638.57 871 850 179.3
A 8 192 94435 522.06 871 850 179.3
A 0 23 69953 385.49 871 850 179.3
B 4 239 913541 5526.79 853 831 165.1
B 4 80 55224 329.37 853 831 165.1
B 0 189 45897 272.89 853 831 165.1
C 15 208 22210 107.79 847 849 198.2
C 13 61 6110 26.55 847 849 198.2
C 8 128 4668 19.27 847 849 198.2
D 1 52 1930185 9554.82 836 810 201.9
D 8 195 107133 526.54 836 810 201.9
D 5 222 51939 253.21 836 810 201.9

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