ASTROSAT CZTI

Data Quality Report

Orbit 15297

Creation date: 2024-06-27T17:06:23.564506
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/AS1A04_223T01_9000002258_15297cztM0_level2.evt modeM0/AS1A04_223T01_9000002258_15297cztM0_level2_quad_clean.evt
Size (bytes)455,688,000107,470,080
Size434.6 MB 102.5 MB
Events in quadrant A3,077,326722,919
Events in quadrant B3,977,278720,948
Events in quadrant C3,242,141705,626
Events in quadrant D3,089,763679,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130872
B0158141
C0133211
D0131671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6097631.033295%
B60972333.821552%
C6097460.754469%
D6097560.918485%

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 7288 6098 1 1 0.01% 0.02%
B 7288 6099 150 150 2.06% 2.46%
C 7288 6099 0 0 0.00% 0.00%
D 7288 6099 11 11 0.15% 0.18%

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 9 143 24998 150.9 794 780 160.5
A 0 226 7170 39.82 794 780 160.5
A 12 194 6051 32.84 794 780 160.5
B 10 16 784175 5368.77 774 757 145.9
B 0 205 33955 227.51 774 757 145.9
B 3 209 32699 218.9 774 757 145.9
C 3 233 286115 1647.25 756 762 173.2
C 7 247 6993 35.97 756 762 173.2
C 13 61 5346 26.46 756 762 173.2
D 7 38 43773 231.89 767 745 185.5
D 5 222 40528 214.4 767 745 185.5
D 8 195 39216 207.33 767 745 185.5

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