ASTROSAT CZTI

Data Quality Report

Orbit 04210

Creation date: 2024-06-27T14:38:50.357248
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/AS1G05_240T01_9000000536_04210cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04210cztM0_level2_quad_clean.evt
Size (bytes)518,181,12071,968,320
Size494.2 MB 68.6 MB
Events in quadrant A3,303,308450,400
Events in quadrant B4,218,699433,056
Events in quadrant C2,994,671439,743
Events in quadrant D4,736,593403,520

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139092
B0166401
C0132351
D0184261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479951.466276%
B64793875.973144%
C6479220.339559%
D64794607.099861%

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 7704 6480 27 27 0.35% 0.42%
B 7704 6480 295 295 3.83% 4.55%
C 7704 6480 0 0 0.00% 0.00%
D 7704 6480 388 388 5.04% 5.99%

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 50 180708 1103.09 802 784 163.1
A 8 15 13920 80.54 802 784 163.1
A 13 14 10929 62.2 802 784 163.1
B 3 0 1081328 7183.07 785 767 150.4
B 14 167 56315 369.26 785 767 150.4
B 15 204 14271 89.77 785 767 150.4
C 9 144 10871 56.63 764 769 178.4
C 13 61 6238 30.66 764 769 178.4
C 14 67 2128 7.62 764 769 178.4
D 9 85 889503 4931.87 752 733 180.2
D 13 239 640588 3550.62 752 733 180.2
D 2 232 190712 1054.21 752 733 180.2

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