ASTROSAT CZTI

Data Quality Report

Orbit 33586

Creation date: 2024-06-27T20:50:28.405052
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/AS1A11_060T01_9000004808_33586cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33586cztM0_level2_quad_clean.evt
Size (bytes)675,757,44054,717,120
Size644.5 MB 52.2 MB
Events in quadrant A7,385,442286,950
Events in quadrant B4,702,732310,404
Events in quadrant C3,635,242338,716
Events in quadrant D4,361,304325,392

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260213
B0176002
C0141922
D0169802

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5641151826.910122%
B564168612.160964%
C56411021.808190%
D56411282.269101%

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 9257 5643 1282 1282 13.85% 22.72%
B 9257 5642 559 559 6.04% 9.91%
C 9257 5643 93 93 1.00% 1.65%
D 9257 5643 128 128 1.38% 2.27%

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 15 169 4689552 39529.65 589 579 118.6
A 12 16 349077 2937.96 589 579 118.6
A 12 194 56425 470.8 589 579 118.6
B 5 172 2015874 16575.67 627 610 121.6
B 0 190 76764 626.37 627 610 121.6
B 4 251 67112 546.98 627 610 121.6
C 3 233 575780 3800.41 648 652 151.3
C 0 10 285414 1881.69 648 652 151.3
C 15 214 240220 1583.05 648 652 151.3
D 8 195 825742 5189.98 642 623 159.0
D 13 249 311273 1953.98 642 623 159.0
D 1 52 303975 1908.08 642 623 159.0

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