ASTROSAT CZTI

Data Quality Report

Orbit 29385

Creation date: 2024-06-27T20:03:44.505422
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/AS1T03_281T01_9000004224_29385cztM0_level2.evt modeM0/AS1T03_281T01_9000004224_29385cztM0_level2_quad_clean.evt
Size (bytes)171,734,40042,462,720
Size163.8 MB 40.5 MB
Events in quadrant A1,061,412298,608
Events in quadrant B1,144,064301,068
Events in quadrant C1,125,914284,152
Events in quadrant D1,742,015267,135

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041791
B045141
C045001
D064791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1840693.750000%
B1840844.565217%
C18401397.554348%
D184020811.304348%

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 3090 1841 0 0 0.00% 0.00%
B 3090 1841 5 5 0.16% 0.27%
C 3090 1840 0 0 0.00% 0.00%
D 3090 1841 100 100 3.24% 5.43%

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 8 192 4817 80.62 274 268 56.4
A 13 254 3573 58.57 274 268 56.4
A 3 137 2450 38.67 274 268 56.4
B 0 229 92297 1762.84 267 261 52.2
B 12 111 5941 108.79 267 261 52.2
B 11 111 5405 98.53 267 261 52.2
C 14 238 55355 874.98 263 265 63.0
C 14 254 19053 298.4 263 265 63.0
C 3 233 13009 202.41 263 265 63.0
D 7 80 299774 4707.88 260 254 63.6
D 1 52 214233 3363.34 260 254 63.6
D 12 33 170028 2668.52 260 254 63.6

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