ASTROSAT CZTI

Data Quality Report

Orbit 30633

Creation date: 2024-06-27T20:17:57.315581
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_055T01_9000004414_30633cztM0_level2.evt modeM0/AS1A10_055T01_9000004414_30633cztM0_level2_quad_clean.evt
Size (bytes)727,989,120116,075,520
Size694.3 MB 110.7 MB
Events in quadrant A3,865,596778,033
Events in quadrant B6,099,746771,196
Events in quadrant C3,974,866734,863
Events in quadrant D7,582,480690,703

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163582
B0237492
C0167042
D0278782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7769931.197065%
B77682292.947992%
C77681602.059732%
D77685286.797116%

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 8044 7769 4 4 0.05% 0.05%
B 8043 7768 7 7 0.09% 0.09%
C 8043 7768 6 6 0.07% 0.08%
D 8043 7768 433 433 5.38% 5.57%

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 13 26705 129.12 989 969 199.3
A 8 192 23405 112.56 989 969 199.3
A 13 254 14746 69.12 989 969 199.3
B 6 159 2173130 11690.61 971 949 185.8
B 6 36 32106 167.69 971 949 185.8
B 0 229 29909 155.86 971 949 185.8
C 14 238 149325 682.19 928 933 217.5
C 10 22 80149 364.17 928 933 217.5
C 3 233 66316 300.58 928 933 217.5
D 8 195 3009664 13713.98 926 903 219.4
D 13 249 544911 2479.6 926 903 219.4
D 12 218 217413 986.86 926 903 219.4

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