ASTROSAT CZTI

Data Quality Report

Orbit 23347

Creation date: 2024-06-27T18:53:05.044023
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/AS1A07_135T02_9000003450_23347cztM0_level2.evt modeM0/AS1A07_135T02_9000003450_23347cztM0_level2_quad_clean.evt
Size (bytes)493,873,92099,806,400
Size471.0 MB 95.2 MB
Events in quadrant A3,382,515648,612
Events in quadrant B3,443,406664,694
Events in quadrant C3,463,289649,397
Events in quadrant D4,246,335625,879

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135622
B0137122
C0138632
D0167032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6220500.803859%
B6220590.948553%
C6220781.254019%
D6220711.141479%

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 7535 6221 0 0 0.00% 0.00%
B 7535 6221 4 4 0.05% 0.06%
C 7535 6221 0 0 0.00% 0.00%
D 7535 6221 25 25 0.33% 0.40%

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 2 79 35532 200.59 867 853 172.9
A 6 16 9856 52.08 867 853 172.9
A 13 254 9153 48.01 867 853 172.9
B 0 189 58741 366.0 853 836 158.2
B 12 111 18204 109.78 853 836 158.2
B 11 111 16516 99.11 853 836 158.2
C 14 238 134383 692.4 837 847 192.9
C 0 239 19134 94.82 837 847 192.9
C 2 16 17503 86.36 837 847 192.9
D 1 52 586130 2820.44 851 831 207.5
D 9 85 220123 1056.72 851 831 207.5
D 2 152 91885 438.77 851 831 207.5

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