ASTROSAT CZTI

Data Quality Report

Orbit 29947

Creation date: 2024-06-27T20:09:04.885312
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_058T01_9000004298_29947cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29947cztM0_level2_quad_clean.evt
Size (bytes)837,299,520151,459,200
Size798.5 MB 144.4 MB
Events in quadrant A5,168,427997,806
Events in quadrant B8,025,853986,695
Events in quadrant C5,558,111957,302
Events in quadrant D5,923,592946,014

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215882
B0307682
C0226212
D0238432

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10089860.852414%
B100891251.238973%
C100892472.448211%
D10088760.753370%

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 12483 10090 4 4 0.03% 0.04%
B 12484 10091 4 4 0.03% 0.04%
C 12483 10090 2 2 0.02% 0.02%
D 12483 10090 15 15 0.12% 0.15%

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 28550 104.26 1331 1307 261.3
A 13 254 18414 65.47 1331 1307 261.3
A 3 137 12088 41.26 1331 1307 261.3
B 6 159 2850173 11863.68 1296 1264 240.1
B 5 255 43745 176.9 1296 1264 240.1
B 12 111 28650 114.04 1296 1264 240.1
C 3 233 300431 1036.53 1265 1275 288.6
C 14 238 243558 839.47 1265 1275 288.6
C 14 254 53462 180.82 1265 1275 288.6
D 8 195 614203 2040.36 1300 1272 300.4
D 12 233 192177 635.5 1300 1272 300.4
D 6 112 56633 184.29 1300 1272 300.4

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