ASTROSAT CZTI

Data Quality Report

Orbit 10028

Creation date: 2024-06-27T15:53:54.728987
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/AS1G07_022T02_9000001434_10028cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10028cztM0_level2_quad_clean.evt
Size (bytes)2,415,553,920457,560,000
Size2.2 GB 436.4 MB
Events in quadrant A15,206,7062,892,249
Events in quadrant B19,592,2532,889,507
Events in quadrant C14,715,8702,981,696
Events in quadrant D21,410,4442,825,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0695731078
B0825161603
C0686661119
D0867451417

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0501
B0500
C0500
D0501

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06806
B068010
C068010
D068020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A330824121.245390%
B3301616655.043009%
C330562900.877299%
D330397502.270044%

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 38440 33321 56 56 0.15% 0.17%
B 38440 33267 869 869 2.26% 2.61%
C 38440 33328 2 2 0.01% 0.01%
D 38440 33337 381 381 0.99% 1.14%

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 8 15 229560 294.27 3810 3726 767.4
A 15 239 178911 228.27 3810 3726 767.4
A 15 174 101015 126.77 3810 3726 767.4
B 4 81 4124624 5794.66 3781 3693 711.2
B 0 214 214885 296.97 3781 3693 711.2
B 0 187 123810 168.9 3781 3693 711.2
C 14 67 143856 162.85 3729 3751 860.4
C 13 61 27572 27.69 3729 3751 860.4
C 8 222 17172 15.6 3729 3751 860.4
D 8 195 2820520 3099.46 3678 3577 908.9
D 2 16 2121562 2330.4 3678 3577 908.9
D 1 52 1426030 1565.11 3678 3577 908.9

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