ASTROSAT CZTI

Data Quality Report

Orbit 09311

Creation date: 2024-06-27T15:44:21.819386
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/AS1G07_002T01_9000001316_09311cztM0_level2.evt modeM0/AS1G07_002T01_9000001316_09311cztM0_level2_quad_clean.evt
Size (bytes)155,096,64015,782,400
Size147.9 MB 15.1 MB
Events in quadrant A1,430,07979,297
Events in quadrant B1,066,53281,943
Events in quadrant C1,035,44684,333
Events in quadrant D1,022,49582,186

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0566052
B0460650
C0460457
D0465532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0422
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A20672069.966134%
B20611647.957302%
C2059984.759592%
D20681014.883946%

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 2288 2084 24 24 1.05% 1.15%
B 2288 2084 0 0 0.00% 0.00%
C 2288 2082 0 0 0.00% 0.00%
D 2288 2083 2 2 0.09% 0.10%

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 5 241123 4156.17 268 262 58.0
A 5 16 117287 2019.32 268 262 58.0
A 1 162 28030 479.15 268 262 58.0
B 12 111 6865 115.07 272 265 57.4
B 11 111 5528 91.76 272 265 57.4
B 14 111 4257 69.6 272 265 57.4
C 9 68 4983 73.46 263 265 64.2
C 13 61 2010 27.17 263 265 64.2
C 8 222 1447 18.4 263 265 64.2
D 1 52 11249 157.08 260 254 70.0
D 10 172 10310 143.67 260 254 70.0
D 2 14 6936 95.46 260 254 70.0

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