ASTROSAT CZTI

Data Quality Report

Orbit 07602

Creation date: 2024-06-27T15:21:41.723515
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/AS1G06_117T01_9000001046_07602cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07602cztM0_level2_quad_clean.evt
Size (bytes)628,945,92093,309,120
Size599.8 MB 89.0 MB
Events in quadrant A3,476,017588,882
Events in quadrant B3,571,372595,578
Events in quadrant C6,954,521561,120
Events in quadrant D4,541,650562,054

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154373
B0155852
C0259942
D0185862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74461021.369863%
B74461231.651894%
C74466578.823529%
D74463274.391620%

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 8851 7449 0 0 0.00% 0.00%
B 8851 7448 0 0 0.00% 0.00%
C 8851 7449 385 385 4.35% 5.17%
D 8851 7449 179 179 2.02% 2.40%

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 15 239 29415 156.41 895 875 182.5
A 0 226 8392 41.2 895 875 182.5
A 12 194 8100 39.59 895 875 182.5
B 4 80 34326 193.42 900 876 172.9
B 4 173 22899 127.34 900 876 172.9
B 12 111 18493 101.87 900 876 172.9
C 9 68 2553226 12864.35 847 850 198.4
C 4 254 1018668 5129.95 847 850 198.4
C 7 87 70479 350.94 847 850 198.4
D 2 152 489380 2331.41 861 833 209.5
D 1 52 215249 1023.22 861 833 209.5
D 12 233 173358 823.31 861 833 209.5

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