ASTROSAT CZTI

Data Quality Report

Orbit 08008

Creation date: 2024-06-27T15:26:45.757092
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/AS1G06_154T01_9000001100_08008cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08008cztM0_level2_quad_clean.evt
Size (bytes)590,348,160114,511,680
Size563.0 MB 109.2 MB
Events in quadrant A3,821,823719,190
Events in quadrant B4,157,054738,665
Events in quadrant C3,805,641742,500
Events in quadrant D5,538,365698,448

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171163
B0177562
C0171252
D0219802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81962362.879453%
B81962983.635920%
C81961031.256711%
D81964565.563690%

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 8706 8199 0 0 0.00% 0.00%
B 8706 8199 6 6 0.07% 0.07%
C 8706 8199 0 0 0.00% 0.00%
D 8706 8199 296 296 3.40% 3.61%

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 15 234 12501 57.11 986 962 202.1
A 13 251 9943 44.45 986 962 202.1
A 13 14 9506 42.28 986 962 202.1
B 5 250 242419 1242.79 995 969 194.3
B 12 111 22475 110.7 995 969 194.3
B 11 111 18115 88.25 995 969 194.3
C 13 61 7410 28.33 972 974 227.2
C 1 16 5499 19.92 972 974 227.2
C 8 222 4638 16.13 972 974 227.2
D 11 144 947102 4164.29 944 919 227.2
D 1 52 810190 3561.72 944 919 227.2
D 2 14 89596 390.28 944 919 227.2

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