ASTROSAT CZTI

Data Quality Report

Orbit 09668

Creation date: 2024-06-27T15:49:09.796661
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/AS1G07_046T01_9000001374_09668cztM0_level2.evt modeM0/AS1G07_046T01_9000001374_09668cztM0_level2_quad_clean.evt
Size (bytes)385,355,52058,636,800
Size367.5 MB 55.9 MB
Events in quadrant A2,927,817349,652
Events in quadrant B2,849,778360,208
Events in quadrant C2,697,701345,429
Events in quadrant D2,817,596332,425

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01228
B01226
C012214
D01228

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012813942
B012422809
C012185872
D012707877

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5529360.651112%
B5565380.682839%
C5525170.307692%
D5545210.378720%

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 7302 5880 5 5 0.07% 0.09%
B 7302 5892 1 1 0.01% 0.02%
C 7302 5859 1 1 0.01% 0.02%
D 7302 5885 4 4 0.05% 0.07%

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 1 162 55151 376.22 722 710 144.7
A 14 111 19560 130.27 722 710 144.7
A 8 15 19313 128.56 722 710 144.7
B 10 252 20829 146.69 724 708 137.2
B 12 111 15879 110.6 724 708 137.2
B 11 111 13039 89.9 724 708 137.2
C 13 61 5076 27.52 689 696 159.2
C 14 67 4052 21.09 689 696 159.2
C 8 222 3969 20.57 689 696 159.2
D 8 195 165420 932.83 685 671 176.6
D 2 152 20821 114.09 685 671 176.6
D 1 52 16583 90.1 685 671 176.6

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