ASTROSAT CZTI

Data Quality Report

Orbit 04513

Creation date: 2024-06-27T14:43:08.724450
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_250T01_9000000568_04513cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04513cztM0_level2_quad_clean.evt
Size (bytes)500,676,48083,635,200
Size477.5 MB 79.8 MB
Events in quadrant A3,171,907540,123
Events in quadrant B3,031,222536,445
Events in quadrant C2,916,779531,737
Events in quadrant D5,624,165493,360

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014409562
B013942549
C013708563
D0224321571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01328
B01324
C01326
D01328

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6206721.160168%
B6217540.868586%
C6211280.450813%
D60581702.806207%

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 8671 6446 28 28 0.32% 0.43%
B 8672 6442 10 10 0.12% 0.16%
C 8672 6451 7 7 0.08% 0.11%
D 8672 6418 92 92 1.06% 1.43%

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 13 304441 2116.54 710 694 143.5
A 0 118 47503 326.17 710 694 143.5
A 0 50 42156 288.91 710 694 143.5
B 8 3 51147 368.09 722 705 137.0
B 15 204 49296 354.58 722 705 137.0
B 10 16 47711 343.02 722 705 137.0
C 9 247 167460 1027.04 696 699 162.4
C 14 48 17528 103.65 696 699 162.4
C 13 61 5719 30.92 696 699 162.4
D 1 20 2595469 16055.71 665 645 161.6
D 13 235 161648 996.22 665 645 161.6
D 10 40 71127 436.11 665 645 161.6

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