ASTROSAT CZTI

Data Quality Report

Orbit 13376

Creation date: 2024-06-27T16:39:52.257914
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_103T01_9000001988_13376cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13376cztM0_level2_quad_clean.evt
Size (bytes)578,113,920106,787,520
Size551.3 MB 101.8 MB
Events in quadrant A3,440,885701,967
Events in quadrant B3,555,285721,990
Events in quadrant C3,497,603697,522
Events in quadrant D6,542,343627,084

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149413
B0151292
C0150212
D0243922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6967981.406631%
B69671161.664992%
C6967400.574135%
D69675958.540261%

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 9388 6970 26 26 0.28% 0.37%
B 9388 6970 8 8 0.09% 0.11%
C 9388 6970 4 4 0.04% 0.06%
D 9388 6970 513 513 5.46% 7.36%

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 9 143 140979 815.98 850 833 171.8
A 1 162 12993 70.8 850 833 171.8
A 15 69 11707 63.31 850 833 171.8
B 10 244 82895 505.95 860 841 162.2
B 3 64 60148 365.69 860 841 162.2
B 0 214 20302 120.0 860 841 162.2
C 14 220 189611 983.1 830 834 192.0
C 3 233 70642 363.54 830 834 192.0
C 13 61 6238 28.14 830 834 192.0
D 1 52 3085303 16390.19 789 765 188.2
D 14 34 262619 1391.4 789 765 188.2
D 5 222 76923 404.68 789 765 188.2

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