ASTROSAT CZTI

Data Quality Report

Orbit 28183

Creation date: 2024-06-27T19:48:55.772426
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/AS1A10_073T05_9000004068_28183cztM0_level2.evt modeM0/AS1A10_073T05_9000004068_28183cztM0_level2_quad_clean.evt
Size (bytes)531,141,120106,220,160
Size506.5 MB 101.3 MB
Events in quadrant A3,289,338722,211
Events in quadrant B3,605,408720,750
Events in quadrant C3,490,818674,861
Events in quadrant D5,257,886644,215

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135400
B0146040
C0143760
D0198790

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6516530.813382%
B65161251.918355%
C6516971.488643%
D65164947.581338%

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 7786 6517 0 0 0.00% 0.00%
B 7786 6517 32 32 0.41% 0.49%
C 7786 6517 4 4 0.05% 0.06%
D 7786 6517 422 422 5.42% 6.48%

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 13 254 9838 53.37 852 838 168.6
A 3 137 7581 39.99 852 838 168.6
A 0 226 7557 39.84 852 838 168.6
B 15 32 175281 1123.79 834 815 155.2
B 10 246 116230 743.42 834 815 155.2
B 12 111 18307 112.67 834 815 155.2
C 3 233 257057 1413.88 793 799 181.2
C 14 238 131661 722.02 793 799 181.2
C 2 16 7072 34.61 793 799 181.2
D 1 52 1403048 7663.67 784 766 183.0
D 5 222 259665 1414.92 784 766 183.0
D 2 250 245020 1334.88 784 766 183.0

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