ASTROSAT CZTI

Data Quality Report

Orbit 03116

Creation date: 2024-06-27T14:24:52.495875
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_214T01_9000000428_03116cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03116cztM0_level2_quad_clean.evt
Size (bytes)12,772,8003,110,400
Size12.2 MB 3.0 MB
Events in quadrant A119,93919,399
Events in quadrant B119,58619,879
Events in quadrant C12,841882
Events in quadrant D112,20526,222

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01193711413
B01208411564
C01751617468
D01221711706

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011279
B011279
C011277
D011282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26210.381679%
B26000.000000%
C2400.000000%
D25700.000000%

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 4050 523 0 0 0.00% 0.00%
B 4066 519 0 0 0.00% 0.00%
C 3898 47 0 0 0.00% 0.00%
D 4050 513 0 0 0.00% 0.00%

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 1845 217.93 30 29 8.3
A 0 13 333 36.48 30 29 8.3
A 12 194 331 36.24 30 29 8.3
B 15 204 1138 136.78 30 29 8.1
B 12 111 367 41.69 30 29 8.1
B 0 198 305 34.04 30 29 8.1
C 14 223 1634 1010.24 2 2 1.6
C 0 219 113 68.71 2 2 1.6
C 1 192 40 23.52 2 2 1.6
D 13 239 1235 136.23 28 27 8.9
D 10 85 1093 120.21 28 27 8.9
D 13 114 948 103.86 28 27 8.9

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