ASTROSAT CZTI

Data Quality Report

Orbit 32206

Creation date: 2024-06-27T20:37:35.240774
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_057T01_9000004692_32206cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32206cztM0_level2_quad_clean.evt
Size (bytes)612,089,280100,100,160
Size583.7 MB 95.5 MB
Events in quadrant A3,311,726660,074
Events in quadrant B5,437,881669,613
Events in quadrant C4,075,232648,235
Events in quadrant D5,296,028623,647

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138593
B0204552
C0162002
D0202092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6155380.617384%
B61552403.899269%
C615571711.649066%
D61552584.191714%

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 7475 6156 1 1 0.01% 0.02%
B 7475 6156 76 76 1.02% 1.23%
C 7475 6156 106 106 1.42% 1.72%
D 7475 6156 160 160 2.14% 2.60%

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 12 189 61884 369.4 836 822 165.3
A 13 6 12832 72.66 836 822 165.3
A 13 254 12170 68.65 836 822 165.3
B 6 159 1795138 11659.92 830 810 153.9
B 5 172 244114 1581.04 830 810 153.9
B 0 229 71163 457.17 830 810 153.9
C 3 233 442188 2440.36 787 799 180.9
C 14 238 244591 1347.88 787 799 180.9
C 14 254 163112 897.4 787 799 180.9
D 8 195 1514993 7957.96 811 792 190.3
D 13 249 407066 2135.19 811 792 190.3
D 12 218 240806 1261.41 811 792 190.3

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