ASTROSAT CZTI

Data Quality Report

Orbit 21391

Creation date: 2024-06-27T18:27:15.010721
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/AS1C04_010T01_9000003158_21391cztM0_level2.evt modeM0/AS1C04_010T01_9000003158_21391cztM0_level2_quad_clean.evt
Size (bytes)114,085,44028,791,360
Size108.8 MB 27.5 MB
Events in quadrant A871,931194,872
Events in quadrant B838,731198,093
Events in quadrant C814,901184,953
Events in quadrant D825,699183,282

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A035492
B033401
C032611
D033011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A148560.404040%
B148570.471380%
C1485110.740741%
D148580.538721%

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 1485 1485 0 0 0.00% 0.00%
B 1485 1485 0 0 0.00% 0.00%
C 1485 1485 0 0 0.00% 0.00%
D 1485 1485 1 1 0.07% 0.07%

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 5 168 36475 825.04 215 212 44.0
A 11 47 5984 131.32 215 212 44.0
A 13 254 2111 43.21 215 212 44.0
B 0 230 10047 239.99 210 206 41.0
B 12 111 4432 103.06 210 206 41.0
B 11 111 3859 89.08 210 206 41.0
C 14 238 32422 684.82 199 201 47.1
C 3 233 3877 78.13 199 201 47.1
C 13 61 1346 24.34 199 201 47.1
D 12 235 29374 572.11 207 202 51.0
D 2 234 5476 103.43 207 202 51.0
D 14 35 4799 90.15 207 202 51.0

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