ASTROSAT CZTI

Data Quality Report

Orbit 17605

Creation date: 2024-06-27T17:38:33.431851
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_056T01_9000002604_17605cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17605cztM0_level2_quad_clean.evt
Size (bytes)561,280,32095,915,520
Size535.3 MB 91.5 MB
Events in quadrant A3,754,611603,113
Events in quadrant B3,815,798604,119
Events in quadrant C5,191,740576,325
Events in quadrant D3,710,719582,665

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162443
B0163042
C0210572
D0164292

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77372523.257076%
B77382873.708969%
C77383885.014216%
D77381662.145257%

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 8527 7737 0 0 0.00% 0.00%
B 8528 7738 2 2 0.02% 0.03%
C 8528 7739 1 1 0.01% 0.01%
D 8528 7739 16 16 0.19% 0.21%

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 15 191 12591 58.9 972 952 197.6
A 0 226 8374 37.56 972 952 197.6
A 3 137 7840 34.86 972 952 197.6
B 12 111 23701 120.99 967 944 188.1
B 11 111 20382 103.35 967 944 188.1
B 14 111 17539 88.23 967 944 188.1
C 3 233 1384989 6382.98 924 926 216.8
C 14 238 140821 645.16 924 926 216.8
C 5 218 61929 281.33 924 926 216.8
D 12 227 92275 394.44 948 920 231.6
D 2 234 28834 120.52 948 920 231.6
D 15 145 25896 107.84 948 920 231.6

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