ASTROSAT CZTI

Data Quality Report

Orbit 06206

Creation date: 2024-06-27T15:04:03.953241
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/AS1A02_085T02_9000000808_06206cztM0_level2.evt modeM0/AS1A02_085T02_9000000808_06206cztM0_level2_quad_clean.evt
Size (bytes)886,780,800176,987,520
Size845.7 MB 168.8 MB
Events in quadrant A5,877,5941,128,962
Events in quadrant B7,685,9501,111,877
Events in quadrant C5,718,0281,142,096
Events in quadrant D6,704,0781,089,019

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0266682
B0320342
C0264522
D0292362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12851660.513579%
B128517635.937281%
C12851470.365730%
D128511531.190569%

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 13226 12854 6 6 0.05% 0.05%
B 13226 12854 367 367 2.77% 2.86%
C 13226 12854 0 0 0.00% 0.00%
D 13226 12854 62 62 0.47% 0.48%

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 8 15 89541 292.72 1479 1444 301.0
A 4 2 58222 188.66 1479 1444 301.0
A 13 251 19885 61.27 1479 1444 301.0
B 3 64 1693280 6068.85 1457 1420 278.8
B 0 214 103828 367.35 1457 1420 278.8
B 0 219 97254 343.76 1457 1420 278.8
C 1 16 26556 75.13 1450 1456 334.1
C 8 128 15461 41.92 1450 1456 334.1
C 13 61 11678 30.6 1450 1456 334.1
D 2 63 607243 1708.72 1442 1394 354.6
D 5 97 167694 469.03 1442 1394 354.6
D 2 14 128418 358.25 1442 1394 354.6

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