ASTROSAT CZTI

Data Quality Report

Orbit 17366

Creation date: 2024-06-27T17:35:39.322014
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/AS1T03_032T01_9000002564_17366cztM0_level2.evt modeM0/AS1T03_032T01_9000002564_17366cztM0_level2_quad_clean.evt
Size (bytes)110,828,16017,317,440
Size105.7 MB 16.5 MB
Events in quadrant A795,457106,727
Events in quadrant B791,694109,863
Events in quadrant C812,069103,206
Events in quadrant D860,558100,961

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A032001
B031751
C032721
D034412

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1381191.375815%
B1381191.375815%
C1381261.882694%
D1380211.521739%

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 1381 1381 0 0 0.00% 0.00%
B 1381 1381 0 0 0.00% 0.00%
C 1381 1381 0 0 0.00% 0.00%
D 1380 1380 3 3 0.22% 0.22%

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 6 16 2852 62.59 206 202 42.3
A 0 226 1785 37.39 206 202 42.3
A 12 194 1392 28.11 206 202 42.3
B 12 111 4297 103.19 202 197 39.7
B 11 111 3976 95.11 202 197 39.7
B 14 111 3457 82.05 202 197 39.7
C 14 238 30028 632.03 198 200 47.2
C 3 233 4184 84.42 198 200 47.2
C 5 112 1943 36.93 198 200 47.2
D 13 232 46817 910.61 202 196 51.2
D 10 70 28695 556.65 202 196 51.2
D 13 189 15217 293.39 202 196 51.2

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