ASTROSAT CZTI

Data Quality Report

Orbit 14622

Creation date: 2024-06-27T16:57:38.113090
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_026T01_9000002154_14622cztM0_level2.evt modeM0/AS1G08_026T01_9000002154_14622cztM0_level2_quad_clean.evt
Size (bytes)440,864,64067,478,400
Size420.4 MB 64.4 MB
Events in quadrant A2,766,213422,813
Events in quadrant B3,250,541416,428
Events in quadrant C3,901,975409,269
Events in quadrant D3,056,425406,821

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119222
B0135191
C0155381
D0130151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5537561.011378%
B55372103.792668%
C5537731.318403%
D55371592.871591%

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 6148 5539 2 2 0.03% 0.04%
B 6148 5539 82 82 1.33% 1.48%
C 6148 5539 0 0 0.00% 0.00%
D 6148 5539 120 120 1.95% 2.17%

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 1 162 67012 481.77 672 658 137.7
A 0 23 31806 226.15 672 658 137.7
A 1 178 23251 164.04 672 658 137.7
B 10 16 448865 3493.56 663 645 128.3
B 0 189 139546 1082.63 663 645 128.3
B 0 229 32247 246.32 663 645 128.3
C 3 233 1360556 9009.31 648 653 150.9
C 3 234 5174 29.95 648 653 150.9
C 13 61 4658 26.53 648 653 150.9
D 10 199 447857 2890.53 644 629 154.7
D 13 172 40193 255.71 644 629 154.7
D 10 70 39927 253.99 644 629 154.7

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