ASTROSAT CZTI

Data Quality Report

Orbit 14366

Creation date: 2024-06-27T16:54:02.925821
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_9000002114_14366cztM0_level2.evt modeM0/AS1A04_048T01_9000002114_14366cztM0_level2_quad_clean.evt
Size (bytes)168,186,24038,050,560
Size160.4 MB 36.3 MB
Events in quadrant A1,201,256254,101
Events in quadrant B1,130,097256,348
Events in quadrant C1,144,111248,620
Events in quadrant D1,474,572242,116

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049010
B046890
C045750
D059190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2076110.529865%
B207670.337187%
C207600.000000%
D2076271.300578%

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 2077 2077 5 5 0.24% 0.24%
B 2077 2077 4 4 0.19% 0.19%
C 2077 2077 0 0 0.00% 0.00%
D 2077 2077 11 11 0.53% 0.53%

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 12 189 246664 4812.04 243 239 51.2
A 15 69 10032 191.23 243 239 51.2
A 3 1 4798 89.03 243 239 51.2
B 0 230 74304 1527.74 240 234 48.5
B 0 229 49172 1009.38 240 234 48.5
B 0 189 25319 517.39 240 234 48.5
C 3 233 245035 4480.96 228 229 54.6
C 8 128 4161 71.97 228 229 54.6
C 8 112 1950 31.5 228 229 54.6
D 12 110 537712 8428.11 231 225 63.8
D 2 120 15223 235.18 231 225 63.8
D 15 0 13467 207.64 231 225 63.8

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