ASTROSAT CZTI

Data Quality Report

Orbit 25354

Creation date: 2024-06-27T19:16:42.420110
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/AS1A09_059T01_9000003706_25354cztM0_level2.evt modeM0/AS1A09_059T01_9000003706_25354cztM0_level2_quad_clean.evt
Size (bytes)502,300,80087,413,760
Size479.0 MB 83.4 MB
Events in quadrant A3,388,404561,511
Events in quadrant B3,313,317568,115
Events in quadrant C3,223,990540,861
Events in quadrant D4,827,679505,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142090
B0140600
C0138420
D0188770

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6756190.281231%
B6756320.473653%
C6755440.651369%
D67553875.729090%

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 7651 6757 0 0 0.00% 0.00%
B 7651 6757 0 0 0.00% 0.00%
C 7650 6756 1 1 0.01% 0.01%
D 7650 6756 324 324 4.24% 4.80%

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 262129 1597.77 810 791 163.6
A 13 254 10852 61.51 810 791 163.6
A 3 137 7562 41.4 810 791 163.6
B 3 112 83492 531.13 807 785 155.7
B 0 229 35266 221.43 807 785 155.7
B 12 111 19099 117.61 807 785 155.7
C 14 238 123478 669.63 779 784 183.2
C 3 233 35277 188.25 779 784 183.2
C 9 54 25190 133.2 779 784 183.2
D 12 233 810987 4349.03 762 740 186.3
D 1 52 489513 2623.51 762 740 186.3
D 7 238 364551 1952.77 762 740 186.3

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