ASTROSAT CZTI

Data Quality Report

Orbit 11105

Creation date: 2024-06-27T16:08:21.772362
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/AS1G08_071T02_9000001620_11105cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11105cztM0_level2_quad_clean.evt
Size (bytes)733,734,72095,535,360
Size699.7 MB 91.1 MB
Events in quadrant A6,678,396571,699
Events in quadrant B4,992,276593,400
Events in quadrant C4,021,428597,100
Events in quadrant D5,957,352543,904

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253784
B0200653
C0177163
D0232383

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A844092810.995261%
B84405516.528436%
C84402683.175355%
D84407639.040284%

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 9520 8441 427 427 4.49% 5.06%
B 9520 8442 125 125 1.31% 1.48%
C 9520 8443 0 0 0.00% 0.00%
D 9520 8441 463 463 4.86% 5.49%

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 5 2531732 12010.15 1021 996 210.7
A 8 15 128955 607.26 1021 996 210.7
A 14 254 66462 310.68 1021 996 210.7
B 4 239 556037 2700.53 1049 1020 205.5
B 10 16 133915 646.62 1049 1020 205.5
B 15 204 81316 390.69 1049 1020 205.5
C 13 61 7958 28.85 1028 1031 240.1
C 8 128 5993 20.67 1028 1031 240.1
C 14 234 4619 14.94 1028 1031 240.1
D 10 253 1325931 5590.66 972 942 237.0
D 1 52 529098 2228.5 972 942 237.0
D 8 195 181918 763.61 972 942 237.0

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