ASTROSAT CZTI

Data Quality Report

Orbit 03345

Creation date: 2024-06-27T14:27:49.860017
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/AS1G05_246T01_9000000450_03345cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03345cztM0_level2_quad_clean.evt
Size (bytes)482,091,84081,483,840
Size459.8 MB 77.7 MB
Events in quadrant A3,128,470494,490
Events in quadrant B3,824,816507,737
Events in quadrant C4,041,042499,718
Events in quadrant D3,135,150482,613

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142214
B0159893
C0167143
D0144253

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6927270.389779%
B6927500.721813%
C6927520.750686%
D6927340.490833%

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 8022 6929 0 0 0.00% 0.00%
B 8022 6929 4 4 0.05% 0.06%
C 8022 6929 13 13 0.16% 0.19%
D 8022 6929 16 16 0.20% 0.23%

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 14 249 18691 108.16 804 785 165.5
A 0 226 8563 46.98 804 785 165.5
A 12 194 8536 46.82 804 785 165.5
B 15 204 466862 2937.93 818 799 158.6
B 14 167 89402 558.53 818 799 158.6
B 3 0 36734 226.52 818 799 158.6
C 8 208 811177 4332.48 790 793 187.0
C 9 54 48781 256.55 790 793 187.0
C 14 223 32308 168.49 790 793 187.0
D 9 85 57114 292.55 786 761 192.6
D 13 223 36268 184.33 786 761 192.6
D 8 195 15005 73.94 786 761 192.6

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