ASTROSAT CZTI

Data Quality Report

Orbit 03802

Creation date: 2024-06-27T14:33:50.393848
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_194T01_9000000490_03802cztM0_level2.evt modeM0/AS1G05_194T01_9000000490_03802cztM0_level2_quad_clean.evt
Size (bytes)485,812,80077,060,160
Size463.3 MB 73.5 MB
Events in quadrant A4,428,152471,174
Events in quadrant B3,422,473471,445
Events in quadrant C3,098,836463,115
Events in quadrant D3,294,886447,004

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178093
B0148282
C0141002
D0149382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68931331.929494%
B6893380.551284%
C6893180.261134%
D6893550.797911%

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 8908 6895 53 53 0.59% 0.77%
B 8908 6894 2 2 0.02% 0.03%
C 8908 6895 0 0 0.00% 0.00%
D 8908 6895 31 31 0.35% 0.45%

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 13 251 1018218 6163.73 808 793 165.1
A 0 118 189893 1145.6 808 793 165.1
A 0 50 64464 385.73 808 793 165.1
B 15 204 125557 782.05 822 802 159.5
B 14 167 38099 233.8 822 802 159.5
B 5 200 29845 182.06 822 802 159.5
C 10 65 9120 44.95 787 794 185.2
C 2 53 6985 33.42 787 794 185.2
C 13 61 6598 31.33 787 794 185.2
D 8 112 182124 959.65 777 755 189.0
D 13 239 75006 392.87 777 755 189.0
D 2 14 43592 226.66 777 755 189.0

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
Veto Counter