ASTROSAT CZTI

Data Quality Report

Orbit 20413

Creation date: 2024-06-27T18:15:06.962371
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/AS1A05_140T01_9000003016_20413cztM0_level2.evt modeM0/AS1A05_140T01_9000003016_20413cztM0_level2_quad_clean.evt
Size (bytes)495,322,560102,179,520
Size472.4 MB 97.4 MB
Events in quadrant A3,452,585665,297
Events in quadrant B3,543,785665,525
Events in quadrant C3,505,530636,784
Events in quadrant D4,011,546627,492

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147351
B0149211
C0147901
D0167461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71681522.120536%
B71691622.259729%
C71692052.859534%
D71693134.366020%

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 7343 7170 0 0 0.00% 0.00%
B 7344 7171 2 2 0.03% 0.03%
C 7344 7171 0 0 0.00% 0.00%
D 7344 7171 135 135 1.84% 1.88%

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 11 29 17591 92.55 891 873 180.6
A 0 226 7672 37.64 891 873 180.6
A 3 137 7507 36.73 891 873 180.6
B 0 189 29987 171.04 882 858 170.3
B 10 245 27867 158.6 882 858 170.3
B 12 111 21015 118.36 882 858 170.3
C 14 238 135634 673.46 853 860 200.1
C 8 128 13593 63.63 853 860 200.1
C 7 220 9515 43.25 853 860 200.1
D 13 153 481100 2282.14 860 835 210.4
D 1 52 259364 1228.49 860 835 210.4
D 2 234 31300 144.76 860 835 210.4

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