ASTROSAT CZTI

Data Quality Report

Orbit 30159

Creation date: 2024-06-27T20:11:38.547040
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_097T03_9000004336_30159cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30159cztM0_level2_quad_clean.evt
Size (bytes)331,447,68042,039,360
Size316.1 MB 40.1 MB
Events in quadrant A1,845,427252,819
Events in quadrant B3,058,096249,921
Events in quadrant C2,699,982241,362
Events in quadrant D2,157,406241,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082201
B0122971
C0107821
D089121

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A406520.049200%
B4066210.516478%
C4066761.869159%
D4066320.787014%

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 4065 4065 0 0 0.00% 0.00%
B 4066 4066 2 2 0.05% 0.05%
C 4066 4066 29 29 0.71% 0.71%
D 4066 4066 24 24 0.59% 0.59%

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 7680 73.95 476 465 97.6
A 3 1 4868 45.13 476 465 97.6
A 3 137 4758 44.0 476 465 97.6
B 6 159 1140595 12508.33 470 458 91.2
B 3 64 25601 275.84 470 458 91.2
B 0 190 18495 197.88 470 458 91.2
C 3 233 859478 7972.56 451 452 107.7
C 14 238 72048 664.48 451 452 107.7
C 2 114 9409 83.13 451 452 107.7
D 8 195 127916 1069.22 457 448 119.2
D 2 250 112959 943.75 457 448 119.2
D 13 249 83008 692.52 457 448 119.2

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