ASTROSAT CZTI

Data Quality Report

Orbit 08533

Creation date: 2024-06-27T15:33:57.129188
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/AS1G07_060T01_9000001200_08533cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08533cztM0_level2_quad_clean.evt
Size (bytes)558,403,20094,878,720
Size532.5 MB 90.5 MB
Events in quadrant A3,932,012579,849
Events in quadrant B4,440,882579,617
Events in quadrant C3,875,431569,425
Events in quadrant D4,086,360555,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176324
B0187737
C0175843
D0182243

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84823824.503655%
B84804565.377358%
C84822913.430795%
D84823333.925961%

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 8852 8483 0 0 0.00% 0.00%
B 8852 8485 40 40 0.45% 0.47%
C 8852 8485 0 0 0.00% 0.00%
D 8852 8484 34 34 0.38% 0.40%

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 13 251 16720 75.08 1015 988 209.5
A 8 5 13079 57.7 1015 988 209.5
A 0 226 9551 40.87 1015 988 209.5
B 10 16 204723 1040.05 1011 981 195.9
B 0 214 149056 755.89 1011 981 195.9
B 15 255 53784 269.55 1011 981 195.9
C 8 128 7458 27.86 989 988 232.2
C 13 61 7401 27.62 989 988 232.2
C 8 222 4752 16.21 989 988 232.2
D 1 52 268856 1112.0 987 958 240.9
D 2 234 26495 106.0 987 958 240.9
D 9 64 26300 105.19 987 958 240.9

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