ASTROSAT CZTI

Data Quality Report

Orbit 06398

Creation date: 2024-06-27T15:06:41.318058
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/AS1C02_011T01_9000000850_06398cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06398cztM0_level2_quad_clean.evt
Size (bytes)102,435,8409,593,280
Size97.7 MB 9.1 MB
Events in quadrant A780,44045,181
Events in quadrant B741,85347,756
Events in quadrant C737,62947,641
Events in quadrant D745,23345,735

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031422
B029611
C029721
D030271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1385362.599278%
B1385392.815884%
C1385221.588448%
D1385271.949458%

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 1385 1385 0 0 0.00% 0.00%
B 1385 1385 0 0 0.00% 0.00%
C 1385 1385 0 0 0.00% 0.00%
D 1385 1385 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 15 236 34910 869.24 187 183 40.0
A 13 251 14912 368.68 187 183 40.0
A 8 15 8303 203.25 187 183 40.0
B 12 111 3781 93.3 189 184 38.5
B 11 111 2870 69.67 189 184 38.5
B 10 246 2246 53.48 189 184 38.5
C 1 16 15949 356.8 182 183 44.2
C 8 128 4909 106.95 182 183 44.2
C 8 112 2228 46.28 182 183 44.2
D 2 152 33968 730.85 182 176 46.2
D 11 241 11823 251.9 182 176 46.2
D 2 234 4622 96.16 182 176 46.2

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