ASTROSAT CZTI

Data Quality Report

Orbit 06324

Creation date: 2024-06-27T15:05:40.917616
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_028T01_9000000834_06324cztM0_level2.evt modeM0/AS1G06_028T01_9000000834_06324cztM0_level2_quad_clean.evt
Size (bytes)442,408,320106,499,520
Size421.9 MB 101.6 MB
Events in quadrant A2,932,580724,855
Events in quadrant B2,970,375734,390
Events in quadrant C2,971,625702,367
Events in quadrant D4,133,779662,491

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121972
B0123031
C0124821
D0161091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5746881.531500%
B5746851.479290%
C5746721.253046%
D57461692.941176%

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 6981 5747 4 4 0.06% 0.07%
B 6981 5747 11 11 0.16% 0.19%
C 6981 5747 24 24 0.34% 0.42%
D 6981 5747 82 82 1.17% 1.43%

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 13 251 48497 320.84 732 720 148.9
A 8 15 20802 134.86 732 720 148.9
A 0 31 20052 129.82 732 720 148.9
B 3 64 85521 612.65 729 716 138.4
B 4 81 32280 228.03 729 716 138.4
B 15 204 31521 222.54 729 716 138.4
C 4 254 253137 1578.15 693 700 160.0
C 9 16 12725 75.18 693 700 160.0
C 13 61 5386 29.3 693 700 160.0
D 12 221 812895 4766.32 697 678 170.4
D 12 220 415133 2432.14 697 678 170.4
D 5 97 75714 440.33 697 678 170.4

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