ASTROSAT CZTI

Data Quality Report

Orbit 09106

Creation date: 2024-06-27T15:41:22.035977
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/AS1A03_105T01_9000001268_09106cztM0_level2.evt modeM0/AS1A03_105T01_9000001268_09106cztM0_level2_quad_clean.evt
Size (bytes)136,111,68018,861,120
Size129.8 MB 18.0 MB
Events in quadrant A1,000,740109,549
Events in quadrant B944,552113,192
Events in quadrant C880,202112,189
Events in quadrant D1,173,110105,129

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040392
B038801
C037981
D046411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1780804.494382%
B1780864.831461%
C1780351.966292%
D17801055.898876%

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 2770 1780 0 0 0.00% 0.00%
B 2770 1780 2 2 0.07% 0.11%
C 2770 1780 1 1 0.04% 0.06%
D 2770 1780 49 49 1.77% 2.75%

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 60005 1199.1 234 229 49.9
A 1 162 17245 341.34 234 229 49.9
A 15 174 12560 247.36 234 229 49.9
B 0 214 20364 420.96 233 228 47.8
B 0 229 14313 294.46 233 228 47.8
B 12 111 5203 104.01 233 228 47.8
C 12 4 7121 128.3 223 224 53.8
C 13 61 1715 27.74 223 224 53.8
C 3 202 545 5.97 223 224 53.8
D 12 233 223158 3949.29 223 216 56.5
D 13 104 49461 872.35 223 216 56.5
D 1 52 29888 525.62 223 216 56.5

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