ASTROSAT CZTI

Data Quality Report

Orbit 13910

Creation date: 2024-06-27T16:47:46.771089
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_012T02_9000002050_13910cztM0_level2.evt modeM0/AS1A04_012T02_9000002050_13910cztM0_level2_quad_clean.evt
Size (bytes)493,833,60087,880,320
Size471.0 MB 83.8 MB
Events in quadrant A3,051,708564,662
Events in quadrant B3,255,913578,191
Events in quadrant C3,057,041570,985
Events in quadrant D5,174,958518,847

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129823
B0135402
C0129072
D0196292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6138220.358423%
B6138530.863473%
C613880.130336%
D61383776.142066%

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 7489 6140 4 4 0.05% 0.07%
B 7489 6140 34 34 0.45% 0.55%
C 7489 6140 0 0 0.00% 0.00%
D 7489 6140 308 308 4.11% 5.02%

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 9 143 62351 396.89 770 753 155.2
A 1 162 11912 71.9 770 753 155.2
A 8 15 10610 63.51 770 753 155.2
B 10 244 144407 996.83 771 754 144.1
B 4 80 36984 251.41 771 754 144.1
B 4 173 21841 146.33 771 754 144.1
C 3 233 107569 613.31 756 763 174.1
C 13 61 5413 26.7 756 763 174.1
C 5 193 2467 9.78 756 763 174.1
D 13 122 1684150 9808.61 727 711 171.6
D 1 52 514812 2995.43 727 711 171.6
D 8 195 108011 625.19 727 711 171.6

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