ASTROSAT CZTI

Data Quality Report

Orbit 00728

Creation date: 2024-06-27T14:02:08.668781
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/AS1P01_010T01_9000000108_00728cztM0_level2.evt modeM0/AS1P01_010T01_9000000108_00728cztM0_level2_quad_clean.evt
Size (bytes)1,307,617,92089,357,760
Size1.2 GB 85.2 MB
Events in quadrant A9,109,829559,863
Events in quadrant B9,296,279568,398
Events in quadrant C8,671,333557,994
Events in quadrant D12,045,783515,049

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0322230
B0327980
C0308703
D0409510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7241420.580030%
B7241440.607651%
C7240220.303867%
D724075810.469613%

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 7241 7241 439 439 6.06% 6.06%
B 7241 7241 480 480 6.63% 6.63%
C 7240 7240 402 402 5.55% 5.55%
D 7240 7240 1966 1966 27.15% 27.15%

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 10 230 255125 452.98 2297 2314 558.1
A 12 189 18731 29.41 2297 2314 558.1
A 14 79 13952 20.85 2297 2314 558.1
B 5 249 58234 97.43 2395 2398 573.1
B 0 220 25792 40.82 2395 2398 573.1
B 15 185 25604 40.49 2395 2398 573.1
C 15 241 41671 64.06 2187 2267 615.1
C 3 111 36682 55.95 2187 2267 615.1
C 9 52 27627 41.23 2187 2267 615.1
D 9 52 3589854 5529.63 2073 2146 648.8
D 6 226 307081 469.99 2073 2146 648.8
D 7 207 296125 453.1 2073 2146 648.8

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