ASTROSAT CZTI

Data Quality Report

Orbit 13523

Creation date: 2024-06-27T16:42:05.046444
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/AS1A04_048T01_9000001992_13523cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13523cztM0_level2_quad_clean.evt
Size (bytes)573,779,520108,146,880
Size547.2 MB 103.1 MB
Events in quadrant A3,937,029682,774
Events in quadrant B4,146,719690,359
Events in quadrant C4,609,706672,283
Events in quadrant D4,113,890646,578

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174253
B0178912
C0190142
D0182762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8396560.666984%
B83961071.274416%
C8396710.845641%
D8396640.762268%

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 9257 8399 0 0 0.00% 0.00%
B 9257 8398 11 11 0.12% 0.13%
C 9257 8399 23 23 0.25% 0.27%
D 9257 8399 35 35 0.38% 0.42%

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 1 162 15717 71.61 1016 996 205.6
A 0 226 9036 39.11 1016 996 205.6
A 12 194 7846 33.32 1016 996 205.6
B 0 189 35606 178.28 1016 990 194.2
B 4 142 35301 176.71 1016 990 194.2
B 4 173 31069 154.91 1016 990 194.2
C 3 233 760432 3354.37 982 986 226.4
C 13 61 6982 26.48 982 986 226.4
C 14 234 6112 22.64 982 986 226.4
D 13 104 248049 1052.79 975 945 234.7
D 13 172 67479 283.47 975 945 234.7
D 13 122 65374 274.5 975 945 234.7

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