ASTROSAT CZTI

Data Quality Report

Orbit 14829

Creation date: 2024-06-27T17:00:20.655160
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_028T01_9000002190_14829cztM0_level2.evt modeM0/AS1G08_028T01_9000002190_14829cztM0_level2_quad_clean.evt
Size (bytes)398,206,08079,286,400
Size379.8 MB 75.6 MB
Events in quadrant A2,926,713501,915
Events in quadrant B2,953,993500,907
Events in quadrant C3,033,141489,772
Events in quadrant D2,728,656480,202

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126982
B0128011
C0128241
D0125411

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6133340.554378%
B6133550.896788%
C6133270.440241%
D6133270.440241%

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 6744 6135 0 0 0.00% 0.00%
B 6744 6135 3 3 0.04% 0.05%
C 6744 6135 0 0 0.00% 0.00%
D 6744 6135 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 12 189 99352 654.53 734 719 150.7
A 0 226 6271 36.84 734 719 150.7
A 4 2 5293 30.35 734 719 150.7
B 3 64 38169 263.13 728 710 142.4
B 0 219 21518 146.17 728 710 142.4
B 12 111 17286 116.44 728 710 142.4
C 3 233 252856 1524.99 707 713 165.3
C 6 96 20661 120.65 707 713 165.3
C 13 61 5005 25.96 707 713 165.3
D 2 234 22259 123.71 710 688 174.4
D 7 254 19375 107.17 710 688 174.4
D 13 249 17864 98.5 710 688 174.4

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