ASTROSAT CZTI

Data Quality Report

Orbit 28332

Creation date: 2024-06-27T19:50:36.033037
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_116T01_9000004082_28332cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28332cztM0_level2_quad_clean.evt
Size (bytes)656,167,68076,694,400
Size625.8 MB 73.1 MB
Events in quadrant A3,597,183466,684
Events in quadrant B4,937,299456,814
Events in quadrant C4,393,182450,474
Events in quadrant D6,434,721424,208

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157050
B0194750
C0177850
D0241360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75311632.164387%
B75325527.328731%
C75322773.677642%
D75325246.956984%

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 7561 7532 0 0 0.00% 0.00%
B 7562 7533 239 239 3.16% 3.17%
C 7562 7533 0 0 0.00% 0.00%
D 7562 7533 343 343 4.54% 4.55%

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 11932 58.28 930 908 189.2
A 3 137 9484 45.34 930 908 189.2
A 0 226 7797 36.42 930 908 189.2
B 10 245 1286341 7172.6 908 883 179.2
B 10 246 78516 433.18 908 883 179.2
B 12 111 22775 122.15 908 883 179.2
C 3 233 755932 3547.7 895 899 212.8
C 14 238 141584 661.04 895 899 212.8
C 13 61 5975 23.85 895 899 212.8
D 1 52 2087195 9731.32 891 867 214.4
D 8 195 588083 2738.97 891 867 214.4
D 2 250 235165 1092.84 891 867 214.4

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