ASTROSAT CZTI

Data Quality Report

Orbit 29169

Creation date: 2024-06-27T20:01:03.201623
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_099T01_9000004184_29169cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29169cztM0_level2_quad_clean.evt
Size (bytes)545,411,520103,340,160
Size520.1 MB 98.6 MB
Events in quadrant A3,552,831681,139
Events in quadrant B3,752,496695,275
Events in quadrant C3,763,376653,699
Events in quadrant D4,988,104625,937

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148132
B0154942
C0154652
D0196112

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67961161.706886%
B67961682.472042%
C67972183.207297%
D67973314.869795%

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 9281 6798 0 0 0.00% 0.00%
B 9281 6798 1 1 0.01% 0.01%
C 9282 6799 0 0 0.00% 0.00%
D 9282 6799 169 169 1.82% 2.49%

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 12538 63.17 919 903 184.2
A 3 137 9012 44.03 919 903 184.2
A 0 226 7755 37.2 919 903 184.2
B 0 183 66430 374.55 915 892 175.0
B 10 246 54465 306.17 915 892 175.0
B 12 111 21229 116.23 915 892 175.0
C 3 233 163014 796.25 872 881 203.6
C 14 238 153859 751.29 872 881 203.6
C 14 254 21078 99.19 872 881 203.6
D 1 52 1296681 6270.66 863 840 206.7
D 8 195 263533 1271.19 863 840 206.7
D 13 104 61618 294.11 863 840 206.7

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