ASTROSAT CZTI

Data Quality Report

Orbit 13653

Creation date: 2024-06-27T16:44:06.995084
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/AS1G08_075T01_9000002024_13653cztM0_level2.evt modeM0/AS1G08_075T01_9000002024_13653cztM0_level2_quad_clean.evt
Size (bytes)182,707,20027,239,040
Size174.2 MB 26.0 MB
Events in quadrant A1,264,136162,497
Events in quadrant B1,373,032164,732
Events in quadrant C1,322,493169,896
Events in quadrant D1,416,319162,402

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051473
B054982
C052912
D056012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A227826811.764706%
B227828212.379280%
C227824710.842845%
D227825511.194030%

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 2344 2281 0 0 0.00% 0.00%
B 2344 2282 2 2 0.09% 0.09%
C 2344 2281 0 0 0.00% 0.00%
D 2344 2281 3 3 0.13% 0.13%

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 12 96 22546 324.58 320 311 68.5
A 1 162 4284 58.0 320 311 68.5
A 0 226 2824 36.68 320 311 68.5
B 0 219 64764 1005.74 312 303 64.1
B 0 189 52851 819.87 312 303 64.1
B 4 80 12240 186.24 312 303 64.1
C 3 233 106343 1419.12 310 309 74.7
C 8 128 3588 43.88 310 309 74.7
C 13 61 2355 27.38 310 309 74.7
D 5 222 93364 1206.13 315 304 77.2
D 8 195 87332 1127.95 315 304 77.2
D 13 249 28123 360.56 315 304 77.2

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