ASTROSAT CZTI

Data Quality Report

Orbit 32002

Creation date: 2024-06-27T20:35:06.541274
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/AS1C06_010T03_9000004676_32002cztM0_level2.evt modeM0/AS1C06_010T03_9000004676_32002cztM0_level2_quad_clean.evt
Size (bytes)463,619,520118,820,160
Size442.1 MB 113.3 MB
Events in quadrant A2,767,157821,727
Events in quadrant B4,599,200823,114
Events in quadrant C3,045,251777,990
Events in quadrant D3,234,455769,514

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119591
B0179461
C0127281
D0134721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5810200.344234%
B58111071.841335%
C58111091.875753%
D5811591.015316%

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 7010 5810 0 0 0.00% 0.00%
B 7011 5811 38 38 0.54% 0.65%
C 7011 5812 37 37 0.53% 0.64%
D 7011 5812 40 40 0.57% 0.69%

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 10707 70.53 714 701 141.9
A 13 6 7799 50.03 714 701 141.9
A 3 137 6601 41.59 714 701 141.9
B 6 159 1599997 12142.9 705 689 131.7
B 5 172 97800 737.32 705 689 131.7
B 10 245 50227 376.12 705 689 131.7
C 3 233 119076 763.85 669 673 155.0
C 14 238 117946 756.56 669 673 155.0
C 0 10 112021 718.34 669 673 155.0
D 8 195 380674 2407.64 677 659 157.8
D 13 249 110213 694.1 677 659 157.8
D 12 79 72517 455.27 677 659 157.8

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