ASTROSAT CZTI

Data Quality Report

Orbit 12814

Creation date: 2024-06-27T16:32:41.360262
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/AS1G08_071T01_9000001888_12814cztM0_level2.evt modeM0/AS1G08_071T01_9000001888_12814cztM0_level2_quad_clean.evt
Size (bytes)569,306,880105,062,400
Size542.9 MB 100.2 MB
Events in quadrant A3,872,492664,819
Events in quadrant B4,741,820664,092
Events in quadrant C3,686,710671,067
Events in quadrant D4,397,651625,578

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169684
B0195503
C0165823
D0187993

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7991460.575648%
B79913644.555125%
C7991550.688274%
D79912543.178576%

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 8697 7994 0 0 0.00% 0.00%
B 8697 7994 104 104 1.20% 1.30%
C 8697 7994 0 0 0.00% 0.00%
D 8697 7994 179 179 2.06% 2.24%

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 171964 868.37 962 942 196.9
A 0 226 8658 39.18 962 942 196.9
A 12 194 7307 32.32 962 942 196.9
B 4 239 560218 3051.51 951 927 183.3
B 0 219 272022 1479.1 951 927 183.3
B 3 64 114990 622.33 951 927 183.3
C 13 61 6834 26.7 944 948 220.5
C 8 128 4459 15.92 944 948 220.5
C 8 112 2482 6.96 944 948 220.5
D 1 52 676693 3006.08 918 892 224.8
D 8 195 160393 709.49 918 892 224.8
D 13 172 44218 192.72 918 892 224.8

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