ASTROSAT CZTI

Data Quality Report

Orbit 20191224_A07_047T08_9000003384_level2

Creation date: 2019-12-26T09:19:04.563851
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/AS1A07_047T08_9000003384cztM0_level2_bc.evt modeM0/AS1A07_047T08_9000003384cztM0_level2_quad_clean.evt
Size (bytes)352,880,640147,072,960
Size336.5 MB 140.3 MB
Events in quadrant A1,829,748987,252
Events in quadrant B1,957,216991,345
Events in quadrant C1,727,701946,810
Events in quadrant D4,552,183904,605

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01820
B01820
C01820
D01820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186140
B0188000
C0184360
D0280490

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89941551.723371%
B89941812.012453%
C89941771.967979%
D89945486.092951%

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 9159 8994 0 0 0.00% 0.00%
B 9159 8995 3 3 0.03% 0.03%
C 9159 8995 0 0 0.00% 0.00%
D 9159 8994 33 33 0.36% 0.37%

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 13 252 60294 583.84 449 439 102.5
A 0 23 22333 213.56 449 439 102.5
A 13 254 15258 144.55 449 439 102.5
B 3 64 70607 782.02 450 438 89.7
B 0 190 48684 537.69 450 438 89.7
B 0 228 30238 332.11 450 438 89.7
C 6 80 57687 555.18 427 423 103.1
C 7 247 8034 73.79 427 423 103.1
C 8 128 5471 48.94 427 423 103.1
D 13 172 1690220 16305.95 430 414 103.6
D 1 52 459126 4426.39 430 414 103.6
D 1 239 276916 2668.13 430 414 103.6

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