ASTROSAT CZTI

Data Quality Report

Orbit 22714

Creation date: 2024-06-27T18:44:45.357589
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/AS1A08_007T01_9000003362_22714cztM0_level2.evt modeM0/AS1A08_007T01_9000003362_22714cztM0_level2_quad_clean.evt
Size (bytes)517,754,88091,272,960
Size493.8 MB 87.0 MB
Events in quadrant A3,445,043580,852
Events in quadrant B3,657,331583,529
Events in quadrant C3,437,283555,629
Events in quadrant D4,655,905546,529

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148072
B0153232
C0147712
D0185112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7148751.049245%
B7148821.147174%
C7147700.979432%
D71471612.252693%

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 7728 7149 8 8 0.10% 0.11%
B 7728 7149 4 4 0.05% 0.06%
C 7727 7148 1 1 0.01% 0.01%
D 7727 7148 118 118 1.53% 1.65%

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 4 208 20947 112.73 883 863 178.2
A 13 254 14015 73.82 883 863 178.2
A 13 170 8742 44.22 883 863 178.2
B 15 33 91191 547.19 879 860 165.1
B 0 245 69681 416.89 879 860 165.1
B 0 228 30466 179.34 879 860 165.1
C 14 238 132716 672.93 841 845 196.0
C 10 23 20842 102.04 841 845 196.0
C 10 22 6327 27.97 841 845 196.0
D 10 230 517166 2506.11 853 828 206.0
D 12 233 347812 1684.13 853 828 206.0
D 12 227 108513 522.66 853 828 206.0

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