ASTROSAT CZTI

Data Quality Report

Orbit 09153

Creation date: 2024-06-27T15:42:01.432670
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/AS1C02_042T01_9000001278_09153cztM0_level2.evt modeM0/AS1C02_042T01_9000001278_09153cztM0_level2_quad_clean.evt
Size (bytes)599,106,240105,946,560
Size571.4 MB 101.0 MB
Events in quadrant A4,950,381672,147
Events in quadrant B3,838,886683,544
Events in quadrant C3,700,535671,360
Events in quadrant D5,107,351621,307

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200852
B0168931
C0167664
D0208543

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80543294.084927%
B80542583.203377%
C80532072.570471%
D80536087.549981%

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 8274 8054 2 2 0.02% 0.02%
B 8274 8054 5 5 0.06% 0.06%
C 8274 8053 0 0 0.00% 0.00%
D 8274 8054 384 384 4.64% 4.77%

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 8 5 1084991 5499.74 959 935 197.1
A 1 162 81991 411.22 959 935 197.1
A 5 16 40004 198.21 959 935 197.1
B 0 219 44919 239.47 963 938 183.7
B 12 111 20211 104.94 963 938 183.7
B 11 111 16663 85.62 963 938 183.7
C 8 128 13130 56.16 939 938 217.1
C 8 112 7448 29.99 939 938 217.1
C 13 61 7334 29.46 939 938 217.1
D 1 52 1191194 4899.97 913 887 242.9
D 2 14 243034 996.81 913 887 242.9
D 7 71 74234 301.94 913 887 242.9

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