ASTROSAT CZTI

Data Quality Report

Orbit 16431

Creation date: 2024-06-27T17:22:34.975378
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/AS1A05_069T03_9000002426_16431cztM0_level2.evt modeM0/AS1A05_069T03_9000002426_16431cztM0_level2_quad_clean.evt
Size (bytes)499,659,84074,473,920
Size476.5 MB 71.0 MB
Events in quadrant A3,345,118453,820
Events in quadrant B3,811,199460,484
Events in quadrant C3,345,515440,358
Events in quadrant D4,166,250423,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142284
B0155413
C0142373
D0170883

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68311602.342263%
B68312113.088860%
C68311672.444737%
D68311732.532572%

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 8797 6833 0 0 0.00% 0.00%
B 8797 6833 7 7 0.08% 0.10%
C 8797 6833 0 0 0.00% 0.00%
D 8797 6833 27 27 0.31% 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 15 223 38795 218.7 852 832 173.6
A 15 239 19694 108.66 852 832 173.6
A 15 174 10611 56.34 852 832 173.6
B 15 35 250767 1527.32 853 830 163.6
B 4 173 63359 382.1 853 830 163.6
B 0 198 63200 381.13 853 830 163.6
C 14 238 124511 644.51 815 822 191.9
C 7 247 29458 149.21 815 822 191.9
C 3 233 14416 70.83 815 822 191.9
D 5 222 849547 4254.52 819 796 199.5
D 12 218 156966 782.83 819 796 199.5
D 2 234 24687 119.76 819 796 199.5

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