ASTROSAT CZTI

Data Quality Report

Orbit 16407

Creation date: 2024-06-27T17:22:14.505242
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_069T01_9000002424_16407cztM0_level2.evt modeM0/AS1A05_069T01_9000002424_16407cztM0_level2_quad_clean.evt
Size (bytes)337,812,48051,848,640
Size322.2 MB 49.4 MB
Events in quadrant A2,300,194316,303
Events in quadrant B2,655,797318,168
Events in quadrant C2,399,348306,432
Events in quadrant D2,554,992298,485

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098962
B0109261
C099991
D0109031

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4700641.361702%
B4700841.787234%
C4700861.829787%
D4700982.085106%

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 5361 4701 8 8 0.15% 0.17%
B 5361 4701 4 4 0.07% 0.09%
C 5361 4702 8 8 0.15% 0.17%
D 5361 4701 33 33 0.62% 0.70%

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 9 143 55466 475.4 565 552 115.5
A 15 174 49791 426.27 565 552 115.5
A 15 223 12882 106.74 565 552 115.5
B 15 35 203628 1861.84 565 549 109.1
B 10 16 81233 739.72 565 549 109.1
B 4 216 61398 557.87 565 549 109.1
C 3 233 157699 1216.7 542 545 129.2
C 14 238 81735 628.58 542 545 129.2
C 0 207 33794 257.42 542 545 129.2
D 1 20 205114 1520.48 548 531 134.6
D 12 218 107837 797.51 548 531 134.6
D 2 122 90206 666.47 548 531 134.6

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