ASTROSAT CZTI

Data Quality Report

Orbit 30556

Creation date: 2024-06-27T20:16:54.734123
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_055T01_9000004400_30556cztM0_level2.evt modeM0/AS1A10_055T01_9000004400_30556cztM0_level2_quad_clean.evt
Size (bytes)568,774,080104,376,960
Size542.4 MB 99.5 MB
Events in quadrant A3,567,656705,339
Events in quadrant B5,342,508695,271
Events in quadrant C3,899,142667,609
Events in quadrant D3,996,046659,563

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146772
B0200572
C0157512
D0162742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6210981.578100%
B62102033.268921%
C62103155.072464%
D6210901.449275%

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 7525 6211 1 1 0.01% 0.02%
B 7525 6211 17 17 0.23% 0.27%
C 7525 6211 82 82 1.09% 1.32%
D 7525 6211 19 19 0.25% 0.31%

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 8 192 23647 126.46 919 905 179.8
A 13 254 10542 53.59 919 905 179.8
A 3 137 8077 39.88 919 905 179.8
B 6 159 1693286 10199.62 897 882 165.9
B 6 36 55439 328.8 897 882 165.9
B 4 171 44919 265.4 897 882 165.9
C 0 10 282624 1453.68 852 861 193.8
C 14 238 141234 724.22 852 861 193.8
C 3 233 122649 628.33 852 861 193.8
D 12 227 197851 958.18 889 870 205.6
D 8 195 165808 802.32 889 870 205.6
D 13 249 112531 543.16 889 870 205.6

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