ASTROSAT CZTI

Data Quality Report

Orbit 05301

Creation date: 2024-06-27T14:53:41.479840
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/AS1G05_212T01_9000000672_05301cztM0_level2.evt modeM0/AS1G05_212T01_9000000672_05301cztM0_level2_quad_clean.evt
Size (bytes)91,425,60022,982,400
Size87.2 MB 21.9 MB
Events in quadrant A609,835146,523
Events in quadrant B653,773148,957
Events in quadrant C693,831148,892
Events in quadrant D705,077138,796

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030576
B0306212
C030636
D032628

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152400.000000%
B152100.000000%
C152400.000000%
D1501100.666223%

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 1527 1527 0 0 0.00% 0.00%
B 1527 1527 0 0 0.00% 0.00%
C 1527 1527 0 0 0.00% 0.00%
D 1527 1505 9 9 0.59% 0.60%

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 13 251 2683 74.1 157 153 34.1
A 12 194 1575 41.65 157 153 34.1
A 0 226 1467 38.49 157 153 34.1
B 4 48 37585 1159.39 159 155 32.3
B 12 111 2847 83.38 159 155 32.3
B 11 111 2201 63.37 159 155 32.3
C 1 16 68560 1777.92 159 160 38.5
C 13 61 1295 29.5 159 160 38.5
C 14 67 994 21.68 159 160 38.5
D 11 145 76518 1925.75 155 150 39.7
D 8 195 25691 644.06 155 150 39.7
D 13 137 10388 258.17 155 150 39.7

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