ASTROSAT CZTI

Data Quality Report

Orbit 06009

Creation date: 2024-06-27T15:01:45.191278
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/AS1G06_086T01_9000000774_06009cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_06009cztM0_level2_quad_clean.evt
Size (bytes)498,853,440123,312,960
Size475.7 MB 117.6 MB
Events in quadrant A3,146,800831,146
Events in quadrant B4,006,198839,156
Events in quadrant C4,444,885782,644
Events in quadrant D3,032,245792,093

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145583
B0167382
C0182932
D0145382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7030440.625889%
B70302072.944523%
C70305577.923186%
D7030350.497866%

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 7835 7031 5 5 0.06% 0.07%
B 7835 7030 97 97 1.24% 1.38%
C 7835 7031 507 507 6.47% 7.21%
D 7835 7031 18 18 0.23% 0.26%

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 7 16 88637 549.5 784 765 159.9
A 15 234 28377 172.67 784 765 159.9
A 12 194 7559 42.48 784 765 159.9
B 3 64 639676 4259.46 793 775 150.0
B 4 81 144454 957.89 793 775 150.0
B 15 204 54626 359.02 793 775 150.0
C 1 241 1543813 9100.56 731 734 169.6
C 1 16 20476 116.43 731 734 169.6
C 12 4 16158 90.97 731 734 169.6
D 2 14 40322 212.32 761 737 186.4
D 12 110 35912 188.66 761 737 186.4
D 8 195 22338 115.86 761 737 186.4

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