ASTROSAT CZTI

Data Quality Report

Orbit 22108

Creation date: 2024-06-27T18:36:42.559950
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/AS1A07_007T04_9000003276_22108cztM0_level2.evt modeM0/AS1A07_007T04_9000003276_22108cztM0_level2_quad_clean.evt
Size (bytes)588,798,720107,755,200
Size561.5 MB 102.8 MB
Events in quadrant A3,801,702708,137
Events in quadrant B3,696,334714,112
Events in quadrant C3,619,694687,764
Events in quadrant D6,201,463627,176

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162662
B0159472
C0156732
D0237503

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7555901.191264%
B7556921.217575%
C75561241.641080%
D755576410.112508%

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 7870 7557 7 7 0.09% 0.09%
B 7871 7558 8 8 0.10% 0.11%
C 7871 7558 0 0 0.00% 0.00%
D 7870 7557 515 515 6.54% 6.81%

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 5 16 200275 1064.09 926 905 187.4
A 4 2 13460 67.01 926 905 187.4
A 13 254 12982 64.46 926 905 187.4
B 0 230 41858 232.92 920 898 175.9
B 12 111 21937 119.64 920 898 175.9
B 15 36 19676 106.78 920 898 175.9
C 14 238 140845 666.52 891 896 210.0
C 10 22 7259 30.3 891 896 210.0
C 13 61 6245 25.48 891 896 210.0
D 11 176 1449372 6815.09 866 841 212.5
D 1 52 428306 2011.15 866 841 212.5
D 12 33 270570 1269.03 866 841 212.5

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