ASTROSAT CZTI

Data Quality Report

Orbit 31683

Creation date: 2024-06-27T20:31:30.469309
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_103T09_9000004630_31683cztM0_level2.evt modeM0/AS1A10_103T09_9000004630_31683cztM0_level2_quad_clean.evt
Size (bytes)201,801,60040,898,880
Size192.5 MB 39.0 MB
Events in quadrant A1,008,702285,490
Events in quadrant B1,750,532277,781
Events in quadrant C1,860,015262,781
Events in quadrant D1,355,305267,255

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A113978187535031246
B1-1-1
C1-1-1
D1-1-1

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056281431
B088412368
C094562472
D071991676

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05414
B05513
C05513
D05614

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A200770.348779%
B1981512.574457%
C1965663.358779%
D1997211.051577%

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 2287 2051 0 0 0.00% 0.00%
B 2281 2020 36 36 1.58% 1.78%
C 2283 1998 25 25 1.10% 1.25%
D 2288 2039 20 20 0.87% 0.98%

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 12 96 6049 108.03 259 254 53.6
A 13 254 4140 72.44 259 254 53.6
A 3 137 2496 41.79 259 254 53.6
B 6 159 525803 10775.17 246 241 48.8
B 4 80 148684 3043.41 246 241 48.8
B 0 229 35352 719.85 246 241 48.8
C 3 233 692821 12389.25 233 234 55.9
C 10 22 174454 3116.51 233 234 55.9
C 14 238 37579 668.04 233 234 55.9
D 8 195 325309 5478.04 246 240 59.3
D 13 249 67792 1138.38 246 240 59.3
D 2 120 8961 146.97 246 240 59.3

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