ASTROSAT CZTI

Data Quality Report

Orbit 39290

Creation date: 2024-06-27T22:02:46.766663
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/AS1A12_037T03_9000005460_39290cztM0_level2.fits modeM0/AS1A12_037T03_9000005460_39290cztM0_level2_quad_clean.evt
Size (bytes)79,387,20010,673,280
Size75.7 MB 10.2 MB
Events in quadrant A464,39982,131
Events in quadrant B333,37086,365
Events in quadrant C363,21980,328
Events in quadrant D1,717,47016,367

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A018532
B014731
C014701
D055991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72940.548697%
B72930.411523%
C72910.137174%
D72959882.030178%

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 729 729 3 3 0.41% 0.41%
B 729 729 0 0 0.00% 0.00%
C 729 729 0 0 0.00% 0.00%
D 728 728 491 491 67.45% 67.45%

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 83 117077 6020.49 85 83 19.4
A 13 248 10378 529.78 85 83 19.4
A 15 222 3245 162.72 85 83 19.4
B 5 172 4293 228.99 83 81 18.4
B 12 111 2144 112.16 83 81 18.4
B 11 111 2019 105.36 83 81 18.4
C 15 214 35713 1687.83 82 82 21.1
C 15 159 3017 139.03 82 82 21.1
C 0 10 1595 71.67 82 82 21.1
D 12 235 1488662 102864.4 50 48 14.5
D 12 227 18443 1271.11 50 48 14.5
D 13 249 5035 344.61 50 48 14.5

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