ASTROSAT CZTI

Data Quality Report

Orbit 08105

Creation date: 2024-06-27T15:28:00.287044
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/AS1A02_055T01_9000001114_08105cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08105cztM0_level2_quad_clean.evt
Size (bytes)465,269,76081,106,560
Size443.7 MB 77.3 MB
Events in quadrant A3,973,191497,456
Events in quadrant B3,194,733514,635
Events in quadrant C3,161,019518,785
Events in quadrant D3,343,964495,492

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161113
B0134002
C0133732
D0140922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61511191.934645%
B6151931.511949%
C6151721.170541%
D6151831.349374%

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 7461 6152 0 0 0.00% 0.00%
B 7461 6152 4 4 0.05% 0.07%
C 7461 6152 0 0 0.00% 0.00%
D 7461 6152 8 8 0.11% 0.13%

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 878384 5428.48 802 787 161.7
A 0 226 7500 41.52 802 787 161.7
A 12 194 7187 39.59 802 787 161.7
B 10 16 19877 126.3 810 792 151.1
B 11 51 19528 123.99 810 792 151.1
B 12 111 15344 96.3 810 792 151.1
C 1 16 47917 259.04 798 804 181.9
C 13 61 6120 29.23 798 804 181.9
C 3 202 2079 7.01 798 804 181.9
D 1 52 248598 1172.42 785 771 211.4
D 5 233 52578 245.09 785 771 211.4
D 12 233 27814 127.94 785 771 211.4

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