ASTROSAT CZTI

Data Quality Report

Orbit 12548

Creation date: 2024-06-27T16:29:02.527739
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_067T01_9000001860_12548cztM0_level2.evt modeM0/AS1G06_067T01_9000001860_12548cztM0_level2_quad_clean.evt
Size (bytes)441,610,56098,274,240
Size421.2 MB 93.7 MB
Events in quadrant A3,358,348636,178
Events in quadrant B3,195,110661,035
Events in quadrant C2,929,607650,905
Events in quadrant D3,478,532603,949

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137303
B0134732
C0128182
D0145532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6072280.461133%
B6072550.905797%
C6072270.444664%
D6072530.872859%

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 7408 6073 0 0 0.00% 0.00%
B 7408 6074 11 11 0.15% 0.18%
C 7408 6074 0 0 0.00% 0.00%
D 7408 6074 26 26 0.35% 0.43%

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 0 23 128493 843.36 751 737 151.5
A 1 162 111213 729.29 751 737 151.5
A 8 15 68072 444.5 751 737 151.5
B 4 239 107455 759.7 765 746 140.5
B 11 51 38941 271.92 765 746 140.5
B 0 205 21026 144.38 765 746 140.5
C 13 61 5344 26.8 749 753 171.3
C 9 221 4886 24.13 749 753 171.3
C 3 233 3071 13.53 749 753 171.3
D 1 52 436698 2526.34 731 710 172.6
D 8 195 126182 727.05 731 710 172.6
D 2 14 50367 287.74 731 710 172.6

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