ASTROSAT CZTI

Data Quality Report

Orbit 20230915_C07_001T10_9000005844_level2

Creation date: 2023-09-18T10:46:47.755233
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/AS1C07_001T10_9000005844cztM0_level2.fits modeM0/AS1C07_001T10_9000005844cztM0_level2_quad_clean.evt
Size (bytes)696,533,760912,703,680
Size664.3 MB 870.4 MB
Events in quadrant A4,174,5905,897,568
Events in quadrant B4,002,3185,942,176
Events in quadrant C4,070,6805,563,693
Events in quadrant D3,444,3524,841,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016100
B016100
C016100
D016100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03060
B03060
C03060
D03060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01959740
B01740090
C01615140
D02408190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7874818802.387362%
B7874810311.309240%
C787482670.339056%
D7874859627.570986%

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 108496 78678 0 0 0.00% 0.00%
B 108496 78735 0 0 0.00% 0.00%
C 108496 78746 0 0 0.00% 0.00%
D 108496 78641 0 0 0.00% 0.00%

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 7 110 3483 9.04 1089 1025 271.9
A 0 29 3451 8.92 1089 1025 271.9
A 9 19 3307 8.39 1089 1025 271.9
B 2 9 3361 11.54 1059 1016 203.2
B 3 80 2862 9.09 1059 1016 203.2
B 5 128 2817 8.86 1059 1016 203.2
C 1 81 3479 9.02 1076 1009 273.9
C 1 80 3237 8.13 1076 1009 273.9
C 3 202 3186 7.95 1076 1009 273.9
D 4 160 2569 6.27 986 897 266.6
D 7 3 2563 6.25 986 897 266.6
D 6 67 2535 6.14 986 897 266.6

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