ASTROSAT CZTI

Data Quality Report

Orbit 22822

Creation date: 2024-06-27T18:46:14.697332
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_012T02_9000003372_22822cztM0_level2.evt modeM0/AS1C05_012T02_9000003372_22822cztM0_level2_quad_clean.evt
Size (bytes)569,327,040117,601,920
Size543.0 MB 112.2 MB
Events in quadrant A3,054,273801,050
Events in quadrant B3,108,237816,814
Events in quadrant C3,087,825775,696
Events in quadrant D7,542,698706,034

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134802
B0135712
C0135762
D0272282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A662080.120846%
B6619170.256836%
C6619480.725185%
D6619111716.875661%

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 7690 6621 0 0 0.00% 0.00%
B 7689 6620 0 0 0.00% 0.00%
C 7689 6620 0 0 0.00% 0.00%
D 7689 6620 953 953 12.39% 14.40%

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 13 254 11193 65.53 791 773 159.0
A 0 226 6771 37.72 791 773 159.0
A 3 137 6766 37.69 791 773 159.0
B 12 111 18273 115.62 792 770 151.4
B 11 111 16188 101.84 792 770 151.4
B 14 111 14522 90.84 792 770 151.4
C 14 238 121507 681.01 759 762 177.3
C 13 61 5305 25.62 759 762 177.3
C 0 239 4269 19.78 759 762 177.3
D 7 238 4354041 25435.21 719 699 171.2
D 12 227 409378 2387.78 719 699 171.2
D 1 52 29699 169.44 719 699 171.2

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