ASTROSAT CZTI

Data Quality Report

Orbit 13624

Creation date: 2024-06-27T16:43:36.875162
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/AS1G08_038T01_9000002018_13624cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13624cztM0_level2_quad_clean.evt
Size (bytes)616,901,76083,666,880
Size588.3 MB 79.8 MB
Events in quadrant A3,616,412480,687
Events in quadrant B4,217,115494,485
Events in quadrant C3,756,297536,936
Events in quadrant D6,584,856499,393

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156853
B0173912
C0158072
D0246542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75012202.932942%
B75012793.719504%
C75011802.399680%
D75016328.425543%

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 7702 7504 8 8 0.10% 0.11%
B 7702 7504 16 16 0.21% 0.21%
C 7702 7504 0 0 0.00% 0.00%
D 7702 7504 377 377 4.89% 5.02%

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 15 69 48351 251.51 921 900 188.7
A 1 162 15003 74.75 921 900 188.7
A 0 226 8355 39.51 921 900 188.7
B 0 219 494132 2793.9 918 893 176.5
B 3 64 48445 269.35 918 893 176.5
B 0 214 28426 155.96 918 893 176.5
C 3 233 221322 1057.79 906 912 208.4
C 13 61 6527 26.95 906 912 208.4
C 8 222 3620 13.0 906 912 208.4
D 5 222 1316132 6206.41 888 862 211.9
D 8 195 690104 3252.35 888 862 211.9
D 13 122 554576 2612.83 888 862 211.9

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