ASTROSAT CZTI

Data Quality Report

Orbit 20200305_C05_002T08_9000003556_level2

Creation date: 2020-03-06T16:01:13.786463
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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_002T08_9000003556cztM0_level2_bc.evt modeM0/AS1C05_002T08_9000003556cztM0_level2_quad_clean.evt
Size (bytes)314,274,24074,269,440
Size299.7 MB 70.8 MB
Events in quadrant A1,356,684501,288
Events in quadrant B1,493,139505,201
Events in quadrant C1,351,133479,240
Events in quadrant D4,937,150380,665

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120840
B0126090
C0121790
D0289930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5463601.098298%
B54631091.995241%
C5463931.702361%
D5463231442.357679%

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 6728 5463 0 0 0.00% 0.00%
B 6728 5463 0 0 0.00% 0.00%
C 6728 5463 2 2 0.03% 0.04%
D 6728 5461 252 252 3.75% 4.61%

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 8098 101.79 352 347 76.1
A 0 226 2291 25.53 352 347 76.1
A 12 194 2166 23.89 352 347 76.1
B 0 197 103591 1546.77 351 344 66.7
B 0 230 27163 401.78 351 344 66.7
B 0 190 6887 98.02 351 344 66.7
C 0 10 71981 920.97 332 332 77.8
C 7 247 2669 30.04 332 332 77.8
C 13 61 1928 20.51 332 332 77.8
D 12 218 3289373 49962.93 279 270 65.8
D 1 52 237400 3602.11 279 270 65.8
D 8 195 102050 1546.08 279 270 65.8

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