ASTROSAT CZTI

Data Quality Report

Orbit 28043

Creation date: 2024-06-27T19:47:26.812664
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_045T03_9000004052_28043cztM0_level2.evt modeM0/AS1A10_045T03_9000004052_28043cztM0_level2_quad_clean.evt
Size (bytes)310,518,72042,186,240
Size296.1 MB 40.2 MB
Events in quadrant A1,884,646260,830
Events in quadrant B1,909,262263,467
Events in quadrant C2,134,432250,206
Events in quadrant D3,226,682244,199

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077510
B078340
C086400
D0120930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3647952.604881%
B36471163.180696%
C36471935.292021%
D36473048.335618%

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 3812 3649 0 0 0.00% 0.00%
B 3812 3648 0 0 0.00% 0.00%
C 3812 3648 2 2 0.05% 0.05%
D 3812 3649 172 172 4.51% 4.71%

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 1 113 13096 128.57 482 472 98.2
A 0 13 12047 117.89 482 472 98.2
A 13 254 6169 58.02 482 472 98.2
B 10 245 16837 178.9 472 459 91.6
B 12 111 11126 116.51 472 459 91.6
B 4 52 10776 112.69 472 459 91.6
C 3 233 310849 2928.26 449 450 106.0
C 14 238 70805 663.72 449 450 106.0
C 2 16 3916 32.7 449 450 106.0
D 8 195 919058 8266.5 456 441 111.1
D 1 52 438412 3941.24 456 441 111.1
D 2 250 53098 473.85 456 441 111.1

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