ASTROSAT CZTI

Data Quality Report

Orbit 07152

Creation date: 2024-06-27T15:16:13.673014
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_029T02_9000000974_07152cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07152cztM0_level2_quad_clean.evt
Size (bytes)475,534,08085,893,120
Size453.5 MB 81.9 MB
Events in quadrant A3,332,152535,563
Events in quadrant B3,363,822548,644
Events in quadrant C3,116,053540,715
Events in quadrant D4,134,013508,631

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143773
B0142812
C0138902
D0165212

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67112734.067948%
B67111291.922217%
C6711761.132469%
D67112623.904038%

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 7615 6710 45 45 0.59% 0.67%
B 7616 6711 5 5 0.07% 0.07%
C 7616 6711 4 4 0.05% 0.06%
D 7616 6711 141 141 1.85% 2.10%

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 14 111 209439 1280.07 797 776 163.0
A 13 248 34548 207.18 797 776 163.0
A 3 1 19791 116.65 797 776 163.0
B 3 220 88902 569.42 804 784 154.7
B 4 81 80650 516.1 804 784 154.7
B 0 214 47954 304.82 804 784 154.7
C 4 254 52299 287.03 777 780 179.5
C 10 22 24446 131.85 777 780 179.5
C 13 61 6047 29.34 777 780 179.5
D 2 216 563492 2927.48 774 747 192.2
D 8 195 277803 1441.28 774 747 192.2
D 2 14 157382 814.84 774 747 192.2

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