ASTROSAT CZTI

Data Quality Report

Orbit 29951

Creation date: 2024-06-27T20:09:07.910061
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/AS1A10_058T01_9000004298_29951cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29951cztM0_level2_quad_clean.evt
Size (bytes)552,283,20078,658,560
Size526.7 MB 75.0 MB
Events in quadrant A3,322,474499,980
Events in quadrant B5,295,387491,268
Events in quadrant C3,544,729469,876
Events in quadrant D4,122,017466,334

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136801
B0200151
C0145291
D0165763

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6515941.442824%
B65161922.946593%
C65161382.117864%
D65151322.026094%

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 7535 6516 0 0 0.00% 0.00%
B 7536 6517 24 24 0.32% 0.37%
C 7536 6517 6 6 0.08% 0.09%
D 7535 6516 39 39 0.52% 0.60%

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 3 1 13441 74.79 852 835 168.6
A 13 254 12915 71.66 852 835 168.6
A 8 192 12161 67.19 852 835 168.6
B 6 159 1885242 12074.2 830 812 156.1
B 3 64 107631 684.43 830 812 156.1
B 3 209 24443 151.41 830 812 156.1
C 3 233 235392 1264.31 802 807 185.5
C 14 238 134114 718.46 802 807 185.5
C 15 159 22275 115.7 802 807 185.5
D 8 195 654662 3402.0 819 798 192.2
D 12 233 246204 1276.83 819 798 192.2
D 5 233 35110 178.52 819 798 192.2

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