ASTROSAT CZTI

Data Quality Report

Orbit 28282

Creation date: 2024-06-27T19:50:01.139480
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/AS1A10_102T06_9000004078_28282cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28282cztM0_level2_quad_clean.evt
Size (bytes)575,081,280117,915,840
Size548.4 MB 112.5 MB
Events in quadrant A3,172,370802,859
Events in quadrant B3,608,043826,374
Events in quadrant C3,265,934799,964
Events in quadrant D6,948,182707,259

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135800
B0149880
C0138350
D0250540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6227420.674482%
B62281392.231856%
C6228991.589595%
D6228117818.914579%

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 7482 6228 1 1 0.01% 0.02%
B 7483 6229 65 65 0.87% 1.04%
C 7483 6228 0 0 0.00% 0.00%
D 7483 6228 1002 1002 13.39% 16.09%

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 50758 311.03 804 790 160.7
A 15 174 20164 120.59 804 790 160.7
A 13 254 11445 66.32 804 790 160.7
B 10 245 386966 2612.35 804 787 147.8
B 0 230 25035 164.03 804 787 147.8
B 4 52 21443 139.73 804 787 147.8
C 14 238 129052 703.96 790 796 182.2
C 3 233 57946 313.68 790 796 182.2
C 13 61 5531 25.99 790 796 182.2
D 1 52 2895723 16747.52 731 711 172.9
D 8 195 643794 3720.21 731 711 172.9
D 12 250 258731 1492.63 731 711 172.9

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