ASTROSAT CZTI

Data Quality Report

Orbit 03222

Creation date: 2024-06-27T14:26:23.696353
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/AS1G05_233T10_9000000438_03222cztM0_level2.evt modeM0/AS1G05_233T10_9000000438_03222cztM0_level2_quad_clean.evt
Size (bytes)1,688,952,960264,464,640
Size1.6 GB 252.2 MB
Events in quadrant A12,489,9121,648,316
Events in quadrant B11,766,4281,650,750
Events in quadrant C14,051,5441,599,471
Events in quadrant D11,325,3421,564,201

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0526713
B0497812
C0575872
D0503912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04540
B04540
C04540
D04540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A224865342.374811%
B224862130.947256%
C224867383.282042%
D224863031.347505%

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 24846 22486 230 230 0.93% 1.02%
B 24846 22486 58 58 0.23% 0.26%
C 24846 22487 612 612 2.46% 2.72%
D 24846 22488 248 248 1.00% 1.10%

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 0 199 2172667 4248.45 2508 2451 510.8
A 0 118 279911 543.16 2508 2451 510.8
A 0 226 252156 488.83 2508 2451 510.8
B 15 204 1210849 2448.17 2567 2506 493.6
B 2 249 307126 617.18 2567 2506 493.6
B 3 0 78229 153.42 2567 2506 493.6
C 1 192 3844368 6831.84 2418 2432 562.4
C 14 223 442101 781.83 2418 2432 562.4
C 6 80 151949 265.87 2418 2432 562.4
D 13 223 960971 1642.73 2416 2346 583.6
D 13 120 322819 549.17 2416 2346 583.6
D 13 239 268703 456.44 2416 2346 583.6

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
Veto Counter