ASTROSAT CZTI

Data Quality Report

Orbit 29042

Creation date: 2024-06-27T19:59:35.517642
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/AS1C05_019T04_9000004162_29042cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29042cztM0_level2_quad_clean.evt
Size (bytes)519,425,280117,532,800
Size495.4 MB 112.1 MB
Events in quadrant A3,312,051769,802
Events in quadrant B3,563,793786,573
Events in quadrant C3,397,987763,272
Events in quadrant D4,965,487736,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148621
B0155621
C0150061
D0198451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72351722.377332%
B72362463.399668%
C72361722.377004%
D72362974.104478%

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 7340 7235 0 0 0.00% 0.00%
B 7341 7236 35 35 0.48% 0.48%
C 7341 7236 4 4 0.05% 0.06%
D 7341 7236 151 151 2.06% 2.09%

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 13 254 12962 69.72 854 835 173.9
A 6 16 11930 63.79 854 835 173.9
A 3 137 8706 45.25 854 835 173.9
B 10 245 183760 1125.2 846 821 162.6
B 10 246 28072 167.61 846 821 162.6
B 12 111 20502 121.05 846 821 162.6
C 14 238 133347 689.07 819 823 192.3
C 2 16 37737 191.94 819 823 192.3
C 3 233 19709 98.2 819 823 192.3
D 1 52 1128025 5688.26 821 797 198.2
D 8 195 595957 3003.32 821 797 198.2
D 2 250 123174 617.54 821 797 198.2

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