ASTROSAT CZTI

Data Quality Report

Orbit 23394

Creation date: 2024-06-27T18:53:43.126825
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/AS1A07_138T09_9000003458_23394cztM0_level2.evt modeM0/AS1A07_138T09_9000003458_23394cztM0_level2_quad_clean.evt
Size (bytes)259,329,60032,976,000
Size247.3 MB 31.4 MB
Events in quadrant A1,594,653195,019
Events in quadrant B1,757,646196,852
Events in quadrant C1,645,395189,208
Events in quadrant D2,624,664176,903

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068591
B073571
C068911
D099551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3379100.295946%
B3380190.562130%
C3380220.650888%
D33803239.556213%

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 3379 3379 0 0 0.00% 0.00%
B 3380 3380 13 13 0.38% 0.38%
C 3380 3380 0 0 0.00% 0.00%
D 3380 3380 281 281 8.31% 8.31%

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 13 254 4755 51.85 412 403 83.9
A 6 16 4005 42.91 412 403 83.9
A 0 226 3528 37.23 412 403 83.9
B 0 190 84328 1081.4 406 396 77.6
B 5 172 33928 432.03 406 396 77.6
B 0 189 24099 305.39 406 396 77.6
C 14 238 64836 685.29 398 401 94.0
C 10 9 18432 191.77 398 401 94.0
C 3 233 3259 30.4 398 401 94.0
D 1 52 1013991 10697.65 385 374 94.8
D 7 238 134618 1416.8 385 374 94.8
D 2 234 14390 147.92 385 374 94.8

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