ASTROSAT CZTI

Data Quality Report

Orbit 15150

Creation date: 2024-06-27T17:04:27.020760
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_218T08_9000002236_15150cztM0_level2.evt modeM0/AS1A04_218T08_9000002236_15150cztM0_level2_quad_clean.evt
Size (bytes)21,021,1206,338,880
Size20.0 MB 6.0 MB
Events in quadrant A152,45440,740
Events in quadrant B148,85240,739
Events in quadrant C160,62240,316
Events in quadrant D149,26839,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06811
B06530
C06910
D06820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A32000.000000%
B32000.000000%
C32000.000000%
D32010.312500%

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 321 321 0 0 0.00% 0.00%
B 321 321 0 0 0.00% 0.00%
C 321 321 0 0 0.00% 0.00%
D 321 321 1 1 0.31% 0.31%

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 15 239 15921 1732.17 34 34 9.2
A 12 189 2158 231.58 34 34 9.2
A 0 226 274 26.17 34 34 9.2
B 0 190 6306 694.1 35 34 9.0
B 3 64 1145 122.95 35 34 9.0
B 4 173 1042 111.55 35 34 9.0
C 3 233 30733 3219.65 33 33 9.5
C 14 234 374 35.76 33 33 9.5
C 13 61 237 21.39 33 33 9.5
D 2 16 7043 711.06 32 31 9.9
D 7 55 6845 690.98 32 31 9.9
D 10 70 6639 670.09 32 31 9.9

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