ASTROSAT CZTI

Data Quality Report

Orbit 48264

Creation date: 2024-09-06T12:16:55.304826
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/AS1A13_029T01_9000006422_48264cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48264cztM0_level2_quad_clean.evt
Size (bytes)628,911,360137,096,640
Size599.8 MB 130.7 MB
Events in quadrant A8,583,771911,035
Events in quadrant B4,441,633936,639
Events in quadrant C3,874,189896,565
Events in quadrant D5,717,285811,438

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0311410
B0191190
C0177920
D0230910

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85682022.357610%
B85691061.237017%
C8569180.210060%
D85691762.053915%

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 8567 8567 0 0 0.00% 0.00%
B 8568 8568 42 42 0.49% 0.49%
C 8569 8569 7 7 0.08% 0.08%
D 8568 8568 165 165 1.93% 1.93%

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 10 83 4779908 23374.94 972 948 204.4
A 13 248 30442 144.26 972 948 204.4
A 13 254 17929 83.06 972 948 204.4
B 5 255 269542 1389.18 974 942 193.4
B 4 21 137526 706.4 974 942 193.4
B 12 18 46174 233.94 974 942 193.4
C 14 254 112463 490.65 960 962 227.3
C 0 207 7654 29.45 960 962 227.3
C 13 61 6449 24.15 960 962 227.3
D 2 165 913863 3799.27 949 917 240.3
D 12 3 630066 2618.24 949 917 240.3
D 2 249 280651 1164.13 949 917 240.3

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