ASTROSAT CZTI

Data Quality Report

Orbit 29690

Creation date: 2024-06-27T20:06:52.610741
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/AS1A10_093T01_9000004274_29690cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29690cztM0_level2_quad_clean.evt
Size (bytes)666,478,08084,991,680
Size635.6 MB 81.1 MB
Events in quadrant A3,208,841546,899
Events in quadrant B5,590,066551,403
Events in quadrant C4,106,504514,658
Events in quadrant D6,822,549489,623

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138762
B0210972
C0164862
D0248342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6753500.740412%
B67531462.162002%
C67532473.657634%
D675390113.342218%

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 7878 6754 0 0 0.00% 0.00%
B 7878 6753 28 28 0.36% 0.41%
C 7878 6753 22 22 0.28% 0.33%
D 7878 6754 873 873 11.08% 12.93%

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 13 254 13505 76.92 829 813 165.0
A 3 137 7876 42.8 829 813 165.0
A 0 226 6933 37.09 829 813 165.0
B 6 159 2140807 13794.35 828 806 155.1
B 0 229 155781 998.96 828 806 155.1
B 10 245 18954 116.98 828 806 155.1
C 3 233 778586 4199.56 796 800 185.2
C 14 238 143701 771.58 796 800 185.2
C 10 22 37308 197.12 796 800 185.2
D 7 80 3085429 17117.83 759 738 180.2
D 8 195 589360 3266.43 759 738 180.2
D 2 250 74087 407.03 759 738 180.2

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