ASTROSAT CZTI

Data Quality Report

Orbit 11783

Creation date: 2024-06-27T16:18:14.718962
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/AS1C03_024T01_9000001742_11783cztM0_level2.evt modeM0/AS1C03_024T01_9000001742_11783cztM0_level2_quad_clean.evt
Size (bytes)596,839,68071,190,720
Size569.2 MB 67.9 MB
Events in quadrant A3,652,581439,635
Events in quadrant B5,752,551423,913
Events in quadrant C3,034,885445,592
Events in quadrant D5,215,795412,998

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147052
B0214661
C0129211
D0198101

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62071472.368294%
B62075058.135976%
C6207610.982761%
D62071462.352183%

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 7453 6209 5 5 0.07% 0.08%
B 7453 6209 236 236 3.17% 3.80%
C 7453 6209 0 0 0.00% 0.00%
D 7453 6209 92 92 1.23% 1.48%

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 8 15 195824 1207.92 804 789 161.5
A 1 162 132831 817.78 804 789 161.5
A 1 178 72242 442.53 804 789 161.5
B 10 16 1559082 10438.61 790 774 149.3
B 4 239 787203 5268.04 790 774 149.3
B 15 204 141167 940.45 790 774 149.3
C 13 61 5633 26.94 778 784 180.0
C 14 234 3772 16.6 778 784 180.0
C 3 202 1950 6.48 778 784 180.0
D 1 52 2051662 11193.79 765 746 183.2
D 8 195 156030 847.53 765 746 183.2
D 13 104 40232 215.51 765 746 183.2

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