ASTROSAT CZTI

Data Quality Report

Orbit 19409

Creation date: 2024-06-27T18:02:33.793012
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_104T06_9000002878_19409cztM0_level2.evt modeM0/AS1A05_104T06_9000002878_19409cztM0_level2_quad_clean.evt
Size (bytes)455,728,32057,098,880
Size434.6 MB 54.5 MB
Events in quadrant A2,268,480390,085
Events in quadrant B2,286,349392,568
Events in quadrant C2,251,560370,745
Events in quadrant D6,709,988278,826

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A091721
B093101
C092021
D0228481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4201310.737920%
B4201270.642704%
C4201491.166389%
D4201170740.633183%

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 4201 4201 4 4 0.10% 0.10%
B 4201 4201 3 3 0.07% 0.07%
C 4201 4201 1 1 0.02% 0.02%
D 4200 4200 1548 1548 36.86% 36.86%

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 5 16 64882 567.45 570 561 113.4
A 13 254 6380 51.34 570 561 113.4
A 0 226 4985 39.03 570 561 113.4
B 0 190 26451 247.23 564 552 104.8
B 7 220 21081 195.97 564 552 104.8
B 12 111 12002 109.3 564 552 104.8
C 14 238 86329 692.15 538 544 123.9
C 3 233 44236 352.52 538 544 123.9
C 0 207 16170 126.08 538 544 123.9
D 10 66 4510488 40175.58 464 451 112.3
D 5 222 195470 1737.24 464 451 112.3
D 7 238 178678 1587.65 464 451 112.3

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