ASTROSAT CZTI

Data Quality Report

Orbit 23406

Creation date: 2024-06-27T18:53:56.987232
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_127T02_9000003460_23406cztM0_level2.evt modeM0/AS1A07_127T02_9000003460_23406cztM0_level2_quad_clean.evt
Size (bytes)589,570,560111,542,400
Size562.3 MB 106.4 MB
Events in quadrant A6,223,947735,309
Events in quadrant B3,392,398790,937
Events in quadrant C3,216,201725,736
Events in quadrant D4,609,311699,905

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022934274
B013998154
C013331133
D017796286

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A607684913.973009%
B6104961.572739%
C6106981.604979%
D60924317.074852%

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 7526 6149 701 701 9.31% 11.40%
B 7527 6159 3 3 0.04% 0.05%
C 7527 6157 0 0 0.00% 0.00%
D 7527 6155 424 424 5.63% 6.89%

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 6 16 3064574 19005.03 820 806 161.2
A 13 254 9162 51.83 820 806 161.2
A 0 226 7104 39.07 820 806 161.2
B 0 189 78698 494.53 837 819 157.5
B 0 190 35942 223.03 837 819 157.5
B 12 111 17795 107.8 837 819 157.5
C 14 238 130973 718.66 787 793 181.1
C 2 16 9595 48.59 787 793 181.1
C 13 61 5466 25.79 787 793 181.1
D 12 227 1104128 5729.82 800 780 192.6
D 1 52 437261 2266.7 800 780 192.6
D 2 234 22521 112.9 800 780 192.6

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