ASTROSAT CZTI

Data Quality Report

Orbit 01043

Creation date: 2024-06-27T14:06:37.219505
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/AS1P01_998T02_9000000190_01043cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01043cztM0_level2_quad_clean.evt
Size (bytes)1,178,784,000112,242,240
Size1.1 GB 107.0 MB
Events in quadrant A7,636,942769,356
Events in quadrant B8,047,874766,735
Events in quadrant C8,597,963723,965
Events in quadrant D10,986,623685,075

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0273401
B0285131
C0301844
D0373581

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6501190.292263%
B6501250.384556%
C65002113.246154%
D650086713.338462%

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 7631 6502 199 199 2.61% 3.06%
B 7631 6502 263 263 3.45% 4.04%
C 7630 6501 583 583 7.64% 8.97%
D 7630 6501 2064 2064 27.05% 31.75%

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 4 33 13062 23.37 1983 1994 473.5
A 11 79 7183 10.96 1983 1994 473.5
A 12 243 6976 10.52 1983 1994 473.5
B 15 154 121006 247.0 2045 2050 481.6
B 5 249 83195 168.49 2045 2050 481.6
B 15 22 18680 34.53 2045 2050 481.6
C 8 208 778308 1515.79 1848 1910 512.2
C 15 241 400997 779.15 1848 1910 512.2
C 12 4 110330 211.67 1848 1910 512.2
D 12 22 2652090 4892.64 1769 1836 541.7
D 10 119 1298316 2393.43 1769 1836 541.7
D 1 83 243882 446.84 1769 1836 541.7

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