ASTROSAT CZTI

Data Quality Report

Orbit 25434

Creation date: 2024-06-27T19:17:36.607731
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/AS1A09_047T01_9000003714_25434cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25434cztM0_level2_quad_clean.evt
Size (bytes)497,672,64098,611,200
Size474.6 MB 94.0 MB
Events in quadrant A3,073,300674,045
Events in quadrant B3,091,290668,346
Events in quadrant C3,061,339638,529
Events in quadrant D5,436,349583,436

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126960
B0129000
C0127900
D0201830

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6036550.911199%
B6036540.894632%
C60371151.904920%
D603662510.354539%

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 7186 6036 0 0 0.00% 0.00%
B 7186 6036 2 2 0.03% 0.03%
C 7187 6037 0 0 0.00% 0.00%
D 7185 6035 561 561 7.81% 9.30%

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 6 16 22754 139.85 790 776 157.1
A 13 254 9520 55.64 790 776 157.1
A 3 137 6955 39.32 790 776 157.1
B 0 230 39332 265.35 769 753 145.4
B 0 245 26162 174.76 769 753 145.4
B 12 111 17286 113.71 769 753 145.4
C 14 238 120940 699.97 741 747 171.7
C 5 112 27242 154.3 741 747 171.7
C 7 247 13576 74.71 741 747 171.7
D 1 52 1886340 10859.25 721 702 173.6
D 12 233 583227 3354.72 721 702 173.6
D 8 195 107223 613.45 721 702 173.6

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