ASTROSAT CZTI

Data Quality Report

Orbit 06792

Creation date: 2024-06-27T15:11:44.386508
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/AS1G06_086T02_9000000936_06792cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06792cztM0_level2_quad_clean.evt
Size (bytes)605,675,520107,516,160
Size577.6 MB 102.5 MB
Events in quadrant A4,255,345661,086
Events in quadrant B4,404,575674,603
Events in quadrant C4,281,960659,681
Events in quadrant D4,782,964628,784

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190373
B0193082
C0190972
D0202502

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01880
B01880
C01880
D01880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9109840.922165%
B91091201.317378%
C9109530.581842%
D9109961.053903%

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 9999 9114 1 1 0.01% 0.01%
B 9999 9114 6 6 0.06% 0.07%
C 9999 9114 0 0 0.00% 0.00%
D 9999 9114 53 53 0.53% 0.58%

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 15 26828 114.26 1088 1061 225.5
A 13 248 25149 106.82 1088 1061 225.5
A 0 226 10429 41.54 1088 1061 225.5
B 4 48 53773 248.03 1102 1075 212.5
B 4 81 28242 127.87 1102 1075 212.5
B 0 228 24793 111.63 1102 1075 212.5
C 12 16 74658 294.68 1061 1066 249.7
C 9 247 52486 205.9 1061 1066 249.7
C 13 61 8402 29.37 1061 1066 249.7
D 8 195 513313 1984.41 1052 1018 258.2
D 2 14 101408 388.87 1052 1018 258.2
D 13 169 100998 387.28 1052 1018 258.2

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