ASTROSAT CZTI

Data Quality Report

Orbit 17489

Creation date: 2024-06-27T17:37:05.994477
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_149T03_9000002590_17489cztM0_level2.evt modeM0/AS1A05_149T03_9000002590_17489cztM0_level2_quad_clean.evt
Size (bytes)211,210,56024,655,680
Size201.4 MB 23.5 MB
Events in quadrant A1,150,003151,611
Events in quadrant B1,302,144150,605
Events in quadrant C1,187,042144,730
Events in quadrant D2,586,715120,688

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050200
B054990
C050130
D093610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A247940.161355%
B247970.282372%
C2480160.645161%
D248045418.306452%

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 2479 2479 0 0 0.00% 0.00%
B 2479 2479 2 2 0.08% 0.08%
C 2480 2480 0 0 0.00% 0.00%
D 2480 2480 402 402 16.21% 16.21%

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 15 174 9775 154.2 296 288 61.5
A 0 226 2594 37.48 296 288 61.5
A 4 2 2453 35.19 296 288 61.5
B 4 216 67495 1184.75 294 288 56.7
B 7 220 37196 650.63 294 288 56.7
B 6 36 24436 425.69 294 288 56.7
C 14 238 44769 648.83 286 286 68.6
C 5 218 20932 301.14 286 286 68.6
C 5 37 2186 27.71 286 286 68.6
D 15 0 918522 13107.66 261 254 70.1
D 13 189 242614 3459.53 261 254 70.1
D 1 52 219008 3122.57 261 254 70.1

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